Document:

<PAGE>

                                                                    Exhibit 10.1

                             SUBSCRIPTION AGREEMENT

                            DATED AS OF MAY 10, 2001

                                 BY AND BETWEEN

                            SCC COMMUNICATIONS CORP.

                                       AND

                        RS INVESTMENT MANAGEMENT CO. LLC

                              --------------------

                                  COMMON STOCK

<PAGE>

                             SUBSCRIPTION AGREEMENT

                                  COMMON STOCK

                            SCC COMMUNICATIONS CORP.

<TABLE>
<CAPTION>
                                                                            PAGE
<S>                                                                         <C>
1.       AGREEMENT TO SUBSCRIBE; PURCHASE PRICE...............................1
         (a)      Subscription................................................1
         (b)      Form and Method of Payment..................................1

2.       BUYER REPRESENTATIONS, WARRANTIES, ETC...............................1
         (a)      Purchase for Investment.....................................1
         (b)      Accredited Investor.........................................2
         (c)      Reoffers and Resales........................................2
         (d)      Company Reliance............................................2
         (e)      Information Provided........................................2
         (f)      Absence of Approvals........................................2

3.       COMPANY REPRESENTATIONS, WARRANTIES, ETC.............................2
         (a)      Organization and Authority..................................2
         (b)      Capitalization..............................................2
         (c)      Concerning the Shares and the Common Stock..................3
         (d)      Approvals...................................................3
         (e)      SEC Filings.................................................3
         (f)      Absence of Brokers, Finders, Etc............................3
         (i)      No Solicitation.............................................3

4.       CERTAIN COVENANTS AND ACKNOWLEDGMENTS................................3
         (a)      Transfer Restrictions.......................................3
         (b)      Restrictive Legend..........................................3
         (c)      Registration Rights Agreement...............................4
         (d)      Form D......................................................4
         (e)      Authorization for Trading; Reporting Status.................4
         (f)      Use of Proceeds.............................................4
         (g)      Blue Sky Laws...............................................4
         (h)      Certain Expenses............................................4
         (i)      Certain Trading Restrictions................................4

5.       MISCELLANEOUS........................................................5
         (a)      Governing Law...............................................5
         (b)      Counterparts................................................5
         (c)      Severability................................................5
         (d)      Amendments..................................................5
         (e)      Waivers.....................................................5
         (f)      Notices.....................................................5
         (g)      Assignment..................................................5
         (h)      Entire Agreement............................................5
         (i)      Termination.................................................5
         (j)      Public Statements, Press Releases, Etc......................5
</TABLE>

ANNEXES

Annex I  - Form of Registration Rights Agreement

<PAGE>

                             SUBSCRIPTION AGREEMENT

                  THIS SUBSCRIPTION AGREEMENT, dated as of May 10, 2001 (the
"Closing Date"), by and between SCC COMMUNICATIONS CORP., a Delaware
corporation (the "Company"), with headquarters located at 6285 Lookout Road,
Boulder, Colorado 80301, and RS Investment Management Co. LLC, a Delaware
limited liability company (the "Buyer"), with headquarters located at 388
Market Street, Suite 200, San Francisco, California 94111.

                              W I T N E S S E T H:

                  WHEREAS, the Buyer wishes to purchase, upon the terms and
subject to the conditions of this Agreement, shares of Common Stock, $.001
par value (the "Common Stock"), of the Company; and

                  WHEREAS, the Company and the Buyer are executing and
delivering this Agreement in reliance upon the exemption from securities
registration afforded by Rule 506 of Regulation D, as promulgated by the
Securities and Exchange Commission (the "SEC") under the Securities Act of
1933, as amended (the "1933 Act");

                  NOW THEREFORE, in consideration of the premises and the
mutual covenants contained herein and other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties
agree as follows:

                  1.  AGREEMENT TO SUBSCRIBE; PURCHASE PRICE.

                  (a) SUBSCRIPTION. The Buyer hereby agrees to purchase from
the Company 632,111 shares of Common Stock (the "Shares") at a purchase price
per share equal to the arithmetic average of the closing price of the Common
Stock on the Nasdaq National Market ("Nasdaq") for the twenty consecutive
trading days prior to May 2, 2001 (the "Offering Date"), for an aggregate
purchase price of $5,000,000 (the "Purchase Price").

                  (b) FORM AND METHOD OF PAYMENT. The Buyer shall pay the
Purchase Price for the Shares by delivering good funds in United States
dollars by wire transfer to:

                  Name of Bank:
                                ---------------------------------------
                  Address of Bank:
                                   ------------------------------------
                  ABA#
                       ------------------------------------------------
                  For credit to A/C#
                                     ----------------------------------
                  Reference:
                              -----------------------------------------

Promptly following payment by the Buyer to the Company of the Purchase Price,
the Company shall deliver certificates for the Shares, registered in the
corporate securities records of the Company in the name of the Buyer or its
nominee.

                  2.  BUYER REPRESENTATIONS, WARRANTIES, ETC.

                  The Buyer represents and warrants to, and covenants and
agrees with, the Company as follows:

                  (a) PURCHASE FOR INVESTMENT. The Buyer is purchasing
the Shares for its own account for investment only and not with a view
towards the public sale or distribution thereof, except as contemplated by
the Registration Rights Agreement (as defined herein);

                                       1
<PAGE>

                  (b) ACCREDITED INVESTOR. The Buyer is an "accredited
investor" as that term is defined in Rule 501 of the General Rules and
Regulations under the 1933 Act by reason of Rule 501(a)(3);

                  (c) REOFFERS AND RESALES. All subsequent offers and
sales of the Shares by the Buyer shall be made pursuant to registration under
the 1933 Act or pursuant to an exemption from registration;

                  (d) COMPANY RELIANCE. The Buyer understands that the Shares
are being offered and sold to it in reliance on specific exemptions from the
registration requirements of United States federal and state securities laws
and that the Company is relying upon the truth and accuracy of, and the
Buyer's compliance with, the representations, warranties, agreements,
acknowledgments and understandings of the Buyer set forth herein in order to
determine the availability of such exemptions and the eligibility of the
Buyer to acquire the Shares;

                  (e) INFORMATION PROVIDED. The Buyer and its advisors, if
any, have been furnished with all materials relating to the business,
finances and operations of the Company and materials relating to the offer
and sale of the Common which have been requested by the Buyer; the Buyer and
its advisors, if any, have been afforded the opportunity to ask questions of
the Company and have received satisfactory answers to any such inquiries;
without limiting the generality of the foregoing, the Buyer has had the
opportunity to obtain and to review the Company's (1) Annual Report on Form
10-K for the fiscal year ended December 31, 2000 and (2) definitive proxy
statement for the Company's Annual Meeting of Stockholders to be held on June
26, 2001, in each case as filed with the SEC (collectively, the "SEC
Reports"); and the Buyer understands that its investment in the Shares
involves a high degree of risk; and

                  (f) ABSENCE OF APPROVALS. The Buyer understands that no United
States federal or state agency or any other government or governmental agency
has passed on or made any recommendation or endorsement of the Shares.

                  3.  COMPANY REPRESENTATIONS, WARRANTIES, ETC.

                  The Company represents and warrants to, and covenants and
agrees with, the Buyer that:

                  (a) ORGANIZATION AND AUTHORITY. The Company is a corporation
duly organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation, and has all requisite corporate power and
authority to (i) own, lease and operate its properties and to carry on its
business as now being conducted, and (ii) to execute, deliver and perform its
obligations under this Agreement and the Registration Rights Agreement, the form
of which is attached hereto as ANNEX I (the "Registration Rights Agreement").
The Company is duly qualified to do business as a foreign corporation and is in
good standing in all jurisdictions wherein such qualification is necessary and
where failure so to qualify could have a material adverse effect on the
business, properties, operations, condition (financial or other), results of
operations or prospects of the Company.

                  (b) CAPITALIZATION. The authorized capital stock of the
Company consists of (a) 30,000,000 shares of Common Stock of which 11,544,500
shares were outstanding on April 30, 2001, all of which are fully paid and
nonassessable; and (b) 15,000,000 shares of Preferred Stock, $.001 par value, of
which no shares were outstanding on April 30, 2001; and on the Closing Date
there will be (x) no material increase from April 30, 2001 in the number of
shares of Common Stock outstanding and (y) no issuances of preferred stock or
other equity securities other than Common Stock will have occurred since April
30, 2001. As of April 30, 2001, the Company had outstanding options, warrants
and similar rights entitling the holders to purchase 2,401,017 shares of Common
Stock (excluding any shares that will be reserved for issuance upon exercise of
warrants issued to Schneider Securities as a "finder's fee" in conjunction with
this private placement). Other than as set forth in the preceding sentence and
as disclosed in the SEC Reports, the Company does not have outstanding any
material amount of securities (or obligations to issue any such securities)
convertible into, exchangeable for or otherwise entitling the

                                       2
<PAGE>

holders thereof to acquire shares of Common Stock. No holder of any of the
Company's securities has any rights, "demand," "piggy-back" or otherwise, to
have such securities registered by reason of the intention to file, filing or
effectiveness of the Registration Statement (as defined in the Registration
Rights Agreement).

                  (c) CONCERNING THE SHARES AND THE COMMON STOCK. The Shares
have been duly authorized, and, when issued and paid for in accordance with this
Agreement, will be duly and validly issued, fully paid and non-assessable. There
are no preemptive or similar rights of any stockholder of the Company or any
other person to acquire any of the Shares. The Common Stock is listed for
trading on the Nasdaq and (1) the Company and the Common Stock meet the criteria
for continued listing and trading on Nasdaq; (2) the Company has not been
notified by Nasdaq or the Nasdaq SmallCap Market of any failure or potential
failure to meet the criteria for continued listing and trading thereon and (3)
no suspension of trading in the Common Stock is in effect. The Company knows of
no reason that the Shares will not be eligible for listing on Nasdaq.

                  (d) APPROVALS. No authorization, approval or consent of, or
filing with, any court, governmental body, regulatory agency, self-regulatory
organization, or stock exchange or market or the stockholders of the Company is
required to be obtained or made by the Company for (1) the execution, delivery
and performance by the Company of this Agreement, the Registration Rights
Agreement, and the other agreements and instruments contemplated hereby and
thereby and (2) the issuance and sale of the Common as contemplated by this
Agreement, other than (x) registration of the resale of the Shares under the
1933 Act as contemplated by the Registration Rights Agreement, (y) as may be
required under applicable state securities or "blue sky" laws and (z) filing of
one or more Forms D with respect to the Shares as required under Regulation D.

                  (e) SEC FILINGS. The Company has timely filed all required
forms, reports and other documents required to be filed by the Company with the
SEC under the 1934 Act. All of such forms, reports and other documents complied,
when filed, in all material respects, with all applicable requirements of the
1933 Act and the 1934 Act.

                  (f) ABSENCE OF BROKERS, FINDERS, ETC. No broker, finder or
similar person is entitled to any commission, fee or other compensation by
reason of the transactions contemplated by this Agreement other than Schneider
Securities and its affiliates, and the Company shall pay, and indemnify and hold
harmless the Buyer from, any claim made against the Buyer by such persons and
any other person for any such commission, fee or other compensation.

                  (g) NO SOLICITATION. No form of general solicitation or
general advertising was used by the Company or, to the best of its knowledge,
any other person acting on behalf of the Company, in respect of or in connection
with the offer and sale of the Shares.

                  4.  CERTAIN COVENANTS AND ACKNOWLEDGMENTS.

                  (a) TRANSFER RESTRICTIONS. The Company and the Buyer
acknowledge and agree that (1) the Shares may not be transferred unless (i)
subsequently registered for resale as contemplated by the Registration Rights
Agreement, or (ii) the Buyer shall have delivered to the Company an opinion of
counsel, reasonably satisfactory in form, scope and substance to the Company, to
the effect that the Shares to be sold or transferred may be sold or transferred
pursuant to an exemption from such registration; and (2) any resale of the
Shares made in reliance on Rule 144 promulgated under the 1933 Act ("Rule 144")
may be made only in accordance with the terms of Rule 144 and further, if Rule
144 is not applicable, any such resale of Shares under circumstances in which
the seller, or the person through whom the sale is made, may be deemed to be an
underwriter, as that term is used in the 1933 Act, may require compliance with
some other exemption under the 1933 Act or the rules and regulations of the SEC
thereunder.

                  (b) RESTRICTIVE LEGEND. (1) The Buyer further acknowledges and
agrees that until such time as the Shares have been registered for resale under
the 1933 Act as contemplated by the

                                       3
<PAGE>

Registration Rights Agreement, the certificates for the Shares may bear a
restrictive legend in substantially the following form (and a stop-transfer
order may be placed against transfer of the certificates for the Shares):

         The securities represented by this certificate have not been registered
         under the Securities Act of 1933, as amended. The securities have been
         acquired for investment and may not be resold, transferred or assigned
         in the absence of an effective registration statement for the
         securities under the Securities Act of 1933, as amended, or an opinion
         of counsel that registration is not required under said Act.

                  (2) Once the Registration Statement required to be filed by
the Company pursuant to Section 2 of the Registration Rights Agreement has been
declared effective, thereafter upon request of the Buyer the Company will
substitute certificates without restrictive legend for certificates for all
Shares issued prior to the date such Registration Statement is declared
effective by the SEC which bear such restrictive legend and remove any
stop-transfer restriction relating thereto promptly, but in no event later than
three Trading Days (as defined herein) after surrender of such certificates by
the Buyer.

                  (c) REGISTRATION RIGHTS AGREEMENT. The parties hereto
agree to enter into the Registration Rights Agreement in the form attached
hereto as ANNEX I on or before the Closing Date.

                  (d) FORM D. The Company agrees to file a Form D with respect
to the Shares as required under Regulation D and to provide a copy thereof to
the Buyer promptly after such filing. The Buyer agrees to cooperate with the
Company in connection with such filing and, upon request of the Company, to
provide all information relating to the Buyer reasonably required for such
filing.

                  (e) AUTHORIZATION FOR TRADING; REPORTING STATUS. On or before
the Closing Date, the Company shall comply with the listing and notification
requirements for listing of the Shares with the Nasdaq and shall provide
evidence of such filing to the Buyer. So long as the Buyer beneficially owns any
of the Shares, the Company shall file all reports required to be filed with the
SEC pursuant to Section 13 or 15(d) of the 1934 Act and the Company shall not
terminate its status as an issuer required to file reports under the 1934 Act
even if the 1934 Act or the rules and regulations thereunder would permit such
termination.

                  (g) BLUE SKY LAWS. On or before the Closing Date, the Company
shall take such action as shall be necessary to qualify, or to obtain an
exemption for, the Shares for sale to the Buyer for issuance to the Buyer
pursuant to this Agreement under such of the securities or "blue sky" laws of
jurisdictions as shall be applicable to the sale of the Shares pursuant to this
Agreement. The Company shall furnish copies of all filings, applications, orders
and grants or confirmations of exemptions relating to such securities or "blue
sky" laws on or prior to the Closing Date.

                  (h) CERTAIN EXPENSES. The Company or the Buyer, as the case
may be, shall pay on demand all expenses incurred by the other party, including
reasonable attorneys' fees and expenses, as a consequence of, or in connection
with (1) any default or breach of any of the defaulting or breaching party's
obligations set forth in any of such agreements or instruments and (2) the
enforcement or restructuring of any right of, including the collection of any
payments due, the other party under any of such agreements or instruments,
including any action or proceeding relating to such enforcement, or any order,
injunction or other process seeking to restrain a party from paying any amount
due the other party, in which the other party prevails.

                  (i) CERTAIN TRADING RESTRICTIONS. The Buyer agrees that on the
Closing Date it will have no short position in the Common Stock. The Buyer
agrees on its behalf and on behalf of its affiliates that on and after the
Closing Date it will not engage in any short sales or other hedging transactions
relating to the Common Stock.

                                       4
<PAGE>

                  5.  MISCELLANEOUS.

                  (a) GOVERNING LAW. This Agreement shall be governed by
and interpreted in accordance with the laws of the State of Colorado.

                  (b) COUNTERPARTS. This Agreement may be executed in
counterparts and by the parties hereto on separate counterparts, all of which
together shall constitute one and the same instrument. A facsimile transmission
of this Agreement bearing a signature on behalf of a party hereto shall be legal
and binding on such party.

                  (c) SEVERABILITY. If any provision of this Agreement shall be
invalid or unenforceable in any jurisdiction, such invalidity or
unenforceability shall not affect the validity or enforceability of the
remainder of this Agreement or the validity or enforceability of this Agreement
in any other jurisdiction.

                  (d) AMENDMENTS. No amendment, modification, waiver, discharge
or termination of any provision of this Agreement nor consent to any departure
by the Buyer or the Company therefrom shall in any event be effective unless the
same shall be in writing and signed by the party to be charged with enforcement,
and then shall be effective only in the specific instance and for the purpose
for which given. No course of dealing between the parties hereto shall operate
as an amendment of this Agreement.

                  (e) WAIVERS. Failure of any party to exercise any right or
remedy under this Agreement or otherwise, or delay by a party in exercising such
right or remedy, or any course of dealings between the parties, shall not
operate as a waiver thereof or an amendment hereof, nor shall any single or
partial exercise of any such right or power, or any abandonment or
discontinuance of steps to enforce such a right or power, preclude any other or
further exercise thereof or exercise of any other right or power.

                  (f) NOTICES. Any notices required or permitted to be given
under the terms of this Agreement shall be delivered personally (which shall
include telephone line facsimile transmission with answer back confirmation) or
by courier and shall be effective upon receipt, in the case of the Company
addressed to the Company at its address shown in the introductory paragraph of
this Agreement, Attention: Chief Financial Officer (facsimile 303-581-0900) or,
in the case of the Buyer, at its address shown in the introductory paragraph of
this Agreement (facsimile _________), or such other address or facsimile
telephone number as a party shall have provided by notice to the other party in
accordance with this provision.

                  (g) ENTIRE AGREEMENT. This Agreement and its Schedules and
Annexes, together with the Registration Rights Agreement, set forth the entire
agreement between the parties hereto with respect to the subject matter hereof
and supersede all prior agreements and understandings, whether written or oral,
with respect thereto.

                  (h) PUBLIC STATEMENTS, PRESS RELEASES, ETC. The Company and
the Buyer shall have the right to approve before issuance any press releases or
any other public statements with respect to the transactions contemplated
hereby; PROVIDED, HOWEVER, that the Company shall be entitled, without the prior
approval of the Buyer, to make any press release or other public disclosure with
respect to such transactions as is required by applicable law or Nasdaq
regulation (although the Buyer shall be consulted by the Company in connection
with any such press release or other public disclosure prior to its release and
shall be provided with a copy thereof).

                                       5
<PAGE>

                  IN WITNESS WHEREOF, this Agreement has been duly executed by
the Buyer and the Company by their respective officers or other representatives
thereunto duly authorized on the respective dates set forth below.

                          RS INVESTMENT MANAGEMENT CO. LLC

                          By:
                              -------------------------------------------------
                                                   [Name]
                                                   [Title]

                          Date: May 10, 2001
                                -----------------------------------------------

                          Address:
                                  ---------------------------------------------

                          Facsimile No.:
                                          -------------------------------------

                          SCC COMMUNICATIONS CORP.

                          By:
                              -------------------------------------------------
                                           Michael D. Dingman, Jr.
                                           Chief Financial Officer

                          Date: May 10, 2001
                                -----------------------------------------------

                                       6<PAGE>

                                                                    Exhibit 10.2

                                                                ANNEX I TO
                                                          SUBSCRIPTION AGREEMENT

                          REGISTRATION RIGHTS AGREEMENT

                  THIS REGISTRATION RIGHTS AGREEMENT, dated as of May 10, 2001
(this "Agreement"), is made by and between SCC COMMUNICATIONS CORP., a Delaware
corporation (the "Company"), and RS Investment Management Co. LLC (together with
its nominees, the "Buyer").

                              W I T N E S S E T H:

                  WHEREAS, in connection with the Subscription Agreement, dated
as of May 10, 2001, between the Buyer and the Company (the "Subscription
Agreement"), the Company has agreed, upon the terms and subject to the
conditions of the Subscription Agreement, to issue and sell to shares (the
"Common Shares") of Common Stock, $.001 par value (the "Common Stock"), of the
Company; and

                  WHEREAS, to induce the Buyer to execute and deliver the
Subscription Agreement, the Company has agreed to provide certain registration
rights under the Securities Act of 1933, as amended, and the rules and
regulations thereunder, or any similar successor statute (collectively, the
"1933 Act"), and applicable state securities laws with respect to the Common
Shares;

                  NOW, THEREFORE, in consideration of the premises and the
mutual covenants contained herein and other good and valuable consideration, the
receipt and sufficiency of which are hereby acknowledged, the Company and the
Buyer hereby agree as follows:

                  1.  DEFINITIONS.

                  (a) As used in this Agreement, the following terms shall
have the following meanings:

                  "Nasdaq" means the Nasdaq National Market.

                  "1934 Act" means the Securities Exchange Act of 1934, as
amended.

                  "register," "registered," and "registration" refer to a
registration effected by preparing and filing a Registration Statement or
Statements in compliance with the 1933 Act and pursuant to Rule 415 under the
1933 Act or any successor rule providing for offering securities on a continuous
basis ("Rule 415"), and the declaration or ordering of effectiveness of such
Registration Statement by the SEC.

                  "Registrable Securities" means the Common Shares, provided
that such Common Shares shall cease to be Registrable Securities when they have
been sold pursuant to an effective registration statement or in compliance with
Rule 144 or when they are eligible to be sold pursuant to subsection (k) of Rule
144.

                  "Registration Period" means the period from the Closing Date
to the earlier of (i) the date which is five years after the SEC Effective Date,
(ii) the date on which the Buyer may sell all of its Registrable Securities
without registration under the 1933 Act pursuant to subsection (k) of Rule 144,
without restriction on the manner of sale or the volume of securities which may
be sold in any period and without the requirement for the giving of any notice
to, or the making of any filing with, the SEC and (iii) the date on which the
Buyer no longer beneficially own any Registrable Securities.

<PAGE>

                  "Registration Statement" means a registration statement of the
Company under the 1933 Act, including any amendment thereto, required to be
filed by the Company pursuant to this Agreement.

                  "Rule 144" means Rule 144 promulgated under the 1933 Act or
any other similar rule or regulation of the SEC that may at any time permit a
holder of any securities to sell securities of the Company to the public without
registration under the 1933 Act.

                  "Rule 415" means Rule 415 promulgated under the 1933 Act or
any other similar rule or regulation of the SEC that may at any time permit a
holder of securities to sell securities of the Company to the public on a
delayed or continuous basis pursuant to a registration statement under the
1933 Act.

                  "SEC" means the United States Securities and Exchange
Commission.

                  "SEC Effective Date" means the date the Registration
Statement is declared effective by the SEC.

                  "SEC Filing Date" means the date the Registration Statement
is first filed with the SEC pursuant to Section 2(a).

                  (b) Capitalized terms defined in the introductory paragraph
or the recitals to this Agreement shall have the respective meanings therein
provided. Capitalized terms used herein and not otherwise defined herein
shall have the respective meanings set forth in the Subscription Agreement.

                  2.  REGISTRATION.

                  (a) MANDATORY REGISTRATION. The Company shall prepare and, on
or prior to the date, which is 30 days after the Closing Date, file with the SEC
a Registration Statement on Form S-3, which, on the date of filing with the SEC,
covers the resale by the Buyer of the Common Shares. The Registration Statement
shall not include securities to be sold for the account of any selling security
holder other than the Buyer, its Finder and affiliates.

                  (b) CERTAIN OFFERINGS. If any offering pursuant to a
Registration Statement pursuant to Section 2(a) hereof involves an underwritten
offering, the Buyer shall have the right to select one legal counsel and an
investment banker or bankers and manager or managers to administer the offering,
which investment banker or bankers or manager or managers shall be reasonably
satisfactory to the Company. The Buyer shall pay all underwriting discounts and
commissions and other fees and expenses of such investment banker or bankers and
manager or managers so selected in accordance with this Section 2(b) (other than
fees and expenses relating to registration of Registrable Securities under
federal or state securities laws, which are payable by the Company pursuant to
Section 5 hereof) with respect to their Registrable Securities and the fees and
expenses of such legal counsel so selected by the Buyer.

                  (c) PENALTY SHARES. If for any reason the Registration
Statement covering the Common Shares is not declared effective by the SEC on or
before the date which is 90 days after the Closing Date, the Company shall issue
to the Buyer additional shares of Common Stock (the "Penalty Shares") equal to
0.05% of the Common Shares initially issued to the Buyer for each day after such
90th day during which the Registration Statement is not effective, with the
actual issuance of aggregate number of Penalty Shares issuable to the Buyer in
any given month to take to take place on the last day of that month.

                  (d) PIGGY-BACK REGISTRATIONS. If at any time the Company shall
determine to prepare and file with the SEC a registration statement relating to
an offering for its own account or the

                                       2
<PAGE>

account of others under the 1933 Act of any of its equity securities, other
than a registration statement registering securities issued (1) pursuant to
compensation plans for employees, directors, officers, advisers or
consultants of the Company and in accordance with the terms of such plans as
in effect as of the date of the Agreement or (2) as part of a transaction
involving a strategic alliance, acquisition of stock or assets, merger,
collaboration, joint venture, partnership or other similar arrangement of the
Company with another corporation, partnership, or other business entity which
is engaged in a business similar to or related to the business of the
Company, so long as in the case of this clause (2) the Board of Directors of
the Company by resolution duly adopted (and a copy of which shall be
furnished to the Buyer promptly after adoption) determines that such issuance
is fair to the holders of each class and series of capital stock of the
Company, the Company shall send to the Buyer written notice of such
determination and, if within ten days after receipt of such notice, the Buyer
shall so request in writing, the Company shall include in such Registration
Statement all or any part of the Registrable Securities the Buyer requests to
be registered, except that if, in connection with any underwritten public
offering for the account of the Company, the managing underwriter(s) thereof
shall impose a limitation on the number of shares of Common Stock which may
be included in the Registration Statement because, in such underwriter(s)'
judgment, such limitation is necessary to effect an orderly public
distribution, then the Company shall be obligated to include in such
Registration Statement only such limited portion of the Registrable
Securities with respect to which the Buyer has requested inclusion hereunder.
Any exclusion of Registrable Securities shall be made pro rata with holders
of other securities having the right to include such securities in the
Registration Statement, based on the total number of securities for which
registration is requested, PROVIDED, HOWEVER, that the Company shall not
exclude any Registrable Securities unless the Company has first excluded all
outstanding securities the holders of which are not entitled by right to
inclusion of securities in such Registration Statement. No right to
registration of Registrable Securities under this Section 2(d) shall be
construed to limit any registration required under Section 2(a) hereof. The
obligations of the Company under this Section 2(d) may be waived by the Buyer
and shall expire after the Company has afforded the opportunity for the Buyer
to exercise registration rights under this Section 2(d) for two
registrations; PROVIDED, HOWEVER, that the Buyer who shall have had any
Registrable Securities excluded from any Registration Statement in accordance
with this Section 2(d) shall be entitled to include in an additional
Registration Statement filed by the Company the Registrable Securities so
excluded. Notwithstanding any other provision of this Agreement, if the
Registration Statement required to be filed pursuant to Section 2(a) of this
Agreement shall have been declared effective by the SEC and the Company shall
have maintained the effectiveness of such Registration Statement as required
by this Agreement and if the Company shall otherwise have complied in all
material respects with its obligations under this Agreement, then the Company
shall not be obligated to register any Registrable Securities on such
Registration Statement referred to in this Section 2(d).

                  (e) ELIGIBILITY FOR FORM S-3. The Company meets the
requirements for the use of Form S-3 for registration of the Registrable
Securities for resale by the Buyer. The Company shall file all reports required
to be filed by the Company with the SEC in a timely manner so as to maintain
such eligibility for the use of Form S-3.

                  3.  OBLIGATIONS OF THE COMPANY. In connection with the
registration of the Registrable Securities, the Company shall:

                  (a) prepare promptly, and file with the SEC not later than 30
days after the Closing Date, a Registration Statement with respect to the number
of Registrable Securities provided in Section 2(a), and thereafter to use its
best efforts to cause each Registration Statement relating to Registrable
Securities to become effective as soon as possible after such filing, and keep
the Registration Statement effective pursuant to Rule 415 at all times during
the Registration Period; submit to the SEC, within three Business Days after the
Company learns that no review of the Registration Statement will be made by the
staff of the SEC or that the staff of the SEC has no further comments on the
Registration Statement, as the case may be, a request for acceleration of
effectiveness of the Registration Statement to a time and date

                                       3
<PAGE>

not later than 48 hours after the submission of such request; notify the
Buyers of the effectiveness of the Registration Statement on the date the
Registration Statement is declared effective;

                  (b) prepare and file with the SEC such amendments (including
post-effective amendments) and supplements to the Registration Statement and the
prospectus used in connection with the Registration Statement as may be
necessary to keep the Registration Statement effective at all times during the
Registration Period, and, during the Registration Period, comply with the
provisions of the 1933 Act with respect to the disposition of all Registrable
Securities of the Company covered by the Registration Statement until such time
as all of such Registrable Securities have been disposed of in accordance with
the intended methods of disposition by the seller or sellers thereof as set
forth in the Registration Statement;

                  (c) furnish to the Buyer and its legal counsel, (1) promptly
after the same is prepared and publicly distributed, filed with the SEC or
received by the Company, one copy of the Registration Statement and any
amendment thereto, each preliminary prospectus and prospectus and each amendment
or supplement thereto, each letter written by or on behalf of the Company to the
SEC or the staff of the SEC and each item of correspondence from the SEC or the
staff of the SEC relating to such Registration Statement (other than any portion
of any thereof which contains information for which the Company has sought
confidential treatment) and (2) such number of copies of a prospectus, including
a preliminary prospectus, and all amendments and supplements thereto and such
other documents, as the Buyer may reasonably request in order to facilitate the
disposition of the Registrable Securities owned by the Buyer;

                  (d) use reasonable efforts to (i) register and qualify the
Registrable Securities covered by the Registration Statement under such
securities or blue sky laws of such jurisdictions as the Buyers reasonably
request, (ii) prepare and file in those jurisdictions such amendments (including
post-effective amendments) and supplements to such registrations and
qualifications as may be necessary to maintain the effectiveness thereof at all
times until the end of the Registration Period, (iii) take such other actions as
may be necessary to maintain such registrations and qualifications in effect at
all times during the Registration Period and (iv) take all other actions
reasonably necessary or advisable to qualify the Registrable Securities for sale
in such jurisdictions; PROVIDED, HOWEVER, that the Company shall not be required
in connection therewith or as a condition thereto (I) to qualify to do business
in any jurisdiction where it would not otherwise be required to qualify but for
this Section 3(d), (II) to subject itself to general taxation in any such
jurisdiction, (III) to file a general consent to service of process in any such
jurisdiction, (IV) to provide any undertakings that cause more than nominal
expense or burden to the Company or (V) to make any change in its Certificate of
Incorporation or bylaws, which in each case the Board of Directors of the
Company determines to be contrary to the best interests of the Company and its
stockholders;

                  (e) in the event that the Registrable Securities are being
offered in an underwritten offering, enter into and perform its obligations
under an underwriting agreement, in usual and customary form, including, without
limitation, customary indemnification and contribution obligations, with the
underwriters of such offering;

                  (f) as promptly as practicable after becoming aware of such
event or circumstance, notify the Buyer of any event or circumstance of which
the Company has knowledge, as a result of which the prospectus included in the
Registration Statement, as then in effect, includes an untrue statement of a
material fact or omits to state a material fact required to be stated therein or
necessary to make the statements therein, in light of the circumstances under
which they were made, not misleading, and use its best efforts promptly to
prepare a supplement or amendment to the Registration Statement to correct such
untrue statement or omission, file such supplement or amendment with the SEC at
such time as shall permit the Buyers to sell Registrable Securities pursuant to
the Registration Statement as promptly

                                       4
<PAGE>

as practicable, and deliver a number of copies of such supplement or
amendment to the Buyer as the Buyer may reasonably request;

                  (g) as promptly as practicable after becoming aware of such
event, the Buyer (or, in the event of an underwritten offering, the managing
underwriters) of the issuance by the SEC of any stop order or other suspension
of effectiveness of the Registration Statement at the earliest possible time;

                  (h) permit the Buyer and its representatives to review and
comment on the Registration Statement and all amendments and supplements thereto
a reasonable period of time prior to their filing with the SEC;

                  (i) at the request of the Buyer, furnish on the date that
Registrable Securities are delivered to an underwriter, if any, for sale in
connection with the Registration Statement (i) a letter, dated such date, from
the Company's independent certified public accountants in form and substance as
is customarily given by independent certified public accountants to underwriters
in an underwritten public offering, addressed to the underwriters; and (ii) an
opinion, dated such date, from counsel representing the Company for purposes of
such Registration Statement, in form and substance as is customarily given in an
underwritten public offering, addressed to the underwriters and the Buyer;

                  (j) at the request of Buyer, furnish on the date that
Registrable Securities are delivered to an underwriter, if any, for sale in
connection with the Registration Statement (i) a letter, dated such date, from
the Company's independent certified public accountants in form and substance as
is customarily given by independent certified public accountants to underwriters
in an underwritten public offering, addressed to the underwriters; and (ii) an
opinion, dated such date, from counsel representing the Company for purposes of
such Registration Statement, in form and substance as is customarily given in an
underwritten public offering, addressed to the underwriters and the Investors;

                  (k) make available for inspection by the Buyer, any
underwriter participating in any disposition pursuant to the Registration
Statement, and any attorney, accountant or other agent retained by the Buyer or
underwriter (collectively, the "Inspectors"), all pertinent financial and other
records, pertinent corporate documents and properties of the Company
(collectively, the "Records"), as shall be reasonably necessary to enable the
Buyer to exercise its due diligence responsibility, and cause the Company's
officers, directors and employees to supply all information which any Inspector
may reasonably request for purposes of such due diligence; PROVIDED, HOWEVER,
that each Inspector shall hold in confidence and shall not make any disclosure
(except to the Buyer) of any Record or other information which the Company
determines in good faith to be confidential, and of which determination the
Inspectors are so notified, unless (i) the disclosure of such Records is
necessary to avoid or correct a misstatement or omission in any Registration
Statement, (ii) the release of such Records is ordered pursuant to a subpoena or
other order from a court or government body of competent jurisdiction or (iii)
the information in such Records has been made generally available to the public
other than by disclosure in violation of this or any other agreement. The
Company shall not be required to disclose any confidential information in such
Records to any Inspector until and unless such Inspector shall have entered into
confidentiality agreements (in form and substance satisfactory to the Company)
with the Company with respect thereto, substantially in the form of this Section
3(k). The Buyer agrees that it shall, upon learning that disclosure of such
Records is sought in or by a court or governmental body of competent
jurisdiction or through other means, give prompt notice to the Company and allow
the Company, at the Company's own expense, to undertake appropriate action to
prevent disclosure of, or to obtain a protective order for, the Records deemed
confidential. The Company shall hold in confidence and shall not make any
disclosure of information concerning the Buyer provided to the Company pursuant
to Section 4(e) hereof unless (i) disclosure of such information is necessary to
comply with federal or state securities laws, (ii) the disclosure of such
information is necessary to avoid or correct a misstatement or omission in any
Registration Statement, (iii) the release of such information is ordered

                                       5
<PAGE>

pursuant to a subpoena or other order from a court or governmental body of
competent jurisdiction or (iv) such information has been made generally
available to the public other than by disclosure in violation of this or, to
the knowledge of the Company, any other agreement. The Company agrees that it
shall, upon learning that disclosure of such information concerning the Buyer
is sought in or by a court or governmental body of competent jurisdiction or
through other means, give prompt notice the Buyer and allow the Buyer, at the
Buyer's own expense, to undertake appropriate action to prevent disclosure
of, or to obtain a protective order for, such information;

                  (l) use its best efforts to cause all the Registrable
Securities covered by the Registration Statement to be listed on the Nasdaq or
such other principal securities market on which securities of the same class or
series issued by the Company are then listed or traded;

                  (m) provide a transfer agent and registrar, which may be a
single entity, for the Registrable Securities not later than the effective date
of the Registration Statement;

                  (n) cooperate with the Buyers and the managing underwriter or
underwriters, if any, to facilitate the timely preparation and delivery of
certificates (not bearing any restrictive legends) representing Registrable
Securities to be offered pursuant to the Registration Statement and enable such
certificates to be in such denominations or amounts, as the case may be, as the
managing underwriter or underwriters, if any, or the Buyers may reasonably
request and registered in such names as the managing underwriter or
underwriters, if any, or the Buyers may request;

                  (o) during the period the Company is required to maintain
effectiveness of the Registration Statement pursuant to Section 3(a), the
Company shall not bid for or purchase any Common Stock or any right to purchase
Common Stock or attempt to induce any person to purchase any such security or
right if such bid, purchase or attempt would in any way limit the right of the
Buyers to sell Registrable Securities by reason of the limitations set forth in
Regulation M under the 1934 Act; and

                  (p) take all other reasonable actions necessary to expedite
and facilitate disposition by the Buyers of the Registrable Securities pursuant
to the Registration Statement, and otherwise comply with all applicable rules
and regulations of the SEC, including, but not limited to, compliance with all
applicable reporting requirements under the 1934 Act.

                  4.  OBLIGATIONS OF THE BUYERS. In connection with the
registration of the Registrable Securities, the Buyers shall have the following
obligations:

                  (a) It shall be a condition precedent to the obligations of
the Company to complete the registration pursuant to this Agreement with respect
to the Registrable Securities of the Buyer that the Buyer shall furnish to the
Company such information regarding itself, the Registrable Securities held by it
and the intended method of disposition of the Registrable Securities held by it
as shall be reasonably required to effect the registration of such Registrable
Securities and shall execute such documents in connection with such registration
as the Company may reasonably request. At least five days prior to the first
anticipated filing date of the Registration Statement, the Company shall notify
the Buyer of the information the Company requires from the Buyer (the "Requested
Information") if any of the Buyer's Registrable Securities are eligible for
inclusion in the Registration Statement. If at least two Business Days prior to
the filing date the Company has not received the Requested Information from the
Buyer, then the Company may file the Registration Statement without including
Registrable Securities of the Buyer but shall not be relieved of its obligation
to file a Registration Statement with the SEC relating to the Registrable
Securities of the Buyer promptly after the Buyer provides the Requested
Information; PROVIDED, HOWEVER, that (i) all expenses of the Company relating to
the preparation, amendment and filing of the Registration Statement to include
the Registrable Securities of the Buyer shall be paid by the Buyer and (ii) the
Company shall not be considered in breach of any of its obligations to the Buyer
to timely file

                                       6
<PAGE>

the Registration Statement under this Agreement or be subject to any
liability to the Buyer pursuant to Section 2(c) to the extent a delay in
filing or obtaining the effectiveness of the Registration Statement for the
Buyer is due to the failure of the Buyer to timely provide the Requested
Information.

                  (b) By accepting the Registrable Securities, the Buyer agrees
to cooperate with the Company as reasonably requested by the Company in
connection with the preparation and filing of the Registration Statement
hereunder, unless the Buyer has notified the Company in writing the Buyer's
election to exclude all Registrable Securities from the Registration Statement;

                  (c) In the event the Buyer determines to engage the services
of an underwriter, the Buyer agrees to enter into and perform the Buyer's
obligations under an underwriting agreement, in usual and customary form,
including, without limitation, customary indemnification and contribution
obligations and lockups, with the managing underwriter of such offering and take
such other actions as are reasonably required in order to expedite or facilitate
the disposition of the Registrable Securities, unless the Buyer has notified the
Company in writing of the Buyer's election to exclude all Registrable Securities
from the Registration Statement;

                  (d) The Buyer agrees that, upon receipt of any notice from the
Company of the happening of any event of the kind described in Section 3(f) or
3(g), the Buyer will immediately discontinue disposition of Registrable
Securities pursuant to the Registration Statement covering such Registrable
Securities until the Buyer's receipt of the copies of the supplemented or
amended prospectus contemplated by Section 3(f) or 3(g) and, if so directed by
the Company, the Buyer shall deliver to the Company (at the expense of the
Company) or destroy (and deliver to the Company a certificate of destruction)
all copies in the Buyer's possession of the prospectus covering such Registrable
Securities current at the time of receipt of such notice;

                  (e) The Buyer may not participate in any underwritten
registration hereunder unless the Buyer (i) agrees to sell the Buyer's
Registrable Securities on the basis provided in any underwriting arrangements,
(ii) completes and executes all questionnaires, powers of attorney, indemnities,
underwriting agreements and other documents reasonably required under the terms
of such underwriting arrangements and (iii) agrees to pay its pro rata share of
all underwriting discounts and commissions and other fees and expenses of
investment bankers and any manager or managers of such underwriting and legal
expenses of the underwriters applicable with respect to its Registrable
Securities, in each case to the extent not payable by the Company pursuant to
the terms of this Agreement; and

                  (f) The Buyer agrees to take all reasonable actions necessary
to comply with the prospectus delivery requirements of the 1933 Act applicable
to its sales of Registrable Securities.

                  5.  EXPENSES OF REGISTRATION. Subject to the proviso in
Section 4(a), all reasonable expenses, other than underwriting discounts and
commissions and other fees and expenses of investment bankers and other than
brokerage commissions, incurred in connection with registrations, filings or
qualifications pursuant to Sections 2 and 3, including, without limitation,
all registration, listing and qualifications fees, printers and accounting
fees and the fees and disbursements of counsel for the Company, shall be
borne by the Company, PROVIDED, HOWEVER, that the Buyer shall bear the fees
and out-of-pocket expenses of its legal counsel.

                  6.  INDEMNIFICATION. In the event any Registrable Securities
are included in a Registration Statement under this Agreement:

                  (a) To the extent permitted by law, the Company will indemnify
and hold harmless the Buyer, its partners, affiliates, employees, duly
authorized agents, directors and officers, each person, if any, who controls the
Buyer within the meaning of the 1933 Act or the 1934 Act, any underwriter (as

                                       7
<PAGE>

defined in the 1933 Act) for the Buyer, the directors and officers, if any,
of such underwriter, and each person, if any, who controls any such
underwriter within the meaning of the 1933 Act or the 1934 Act (each, an
"Indemnified Person"), against any losses, claims, damages, liabilities or
expenses (joint or several) incurred (collectively, "Claims") to which any of
them may become subject under the 1933 Act, the 1934 Act or otherwise,
insofar as such Claims (or actions or proceedings, whether commenced or
threatened, in respect thereof) arise out of or are based upon any of the
following statements or omissions in or violations with respect to the
Registration Statement, or any post-effective amendment thereof, or any
prospectus included therein: (i) any untrue statement or alleged untrue
statement of a material fact contained in the Registration Statement or any
post-effective amendment thereof or the omission or alleged omission to state
therein a material fact required to be stated therein or necessary to make
the statements therein not misleading, (ii) any untrue statement or alleged
untrue statement of a material fact contained in any preliminary prospectus
if used prior to the effective date of such Registration Statement, or
contained in the final prospectus (as amended or supplemented, if the Company
files any amendment thereof or supplement thereto with the SEC) or the
omission or alleged omission to state therein any material fact necessary to
make the statements made therein, in light of the circumstances under which
the statements therein were made, not misleading or (iii) any violation or
alleged violation by the Company of the 1933 Act, the 1934 Act, any state
securities law or any rule or regulation under the 1933 Act, the 1934 Act or
any state securities law (the matters in the foregoing clauses (i) through
(iii) being, collectively, "Violations"). Subject to the restrictions set
forth in Section 6(d) with respect to the number of legal counsel, the
Company shall reimburse the Buyer and the other Indemnified Persons, promptly
as such expenses are incurred and are due and payable, for any legal fees or
other reasonable expenses incurred by them in connection with investigating
or defending any such Claim. Notwithstanding anything to the contrary
contained herein, the indemnification agreement contained in this Section
6(a): (I) shall not apply to a Claim arising out of or based upon a Violation
which occurs in reliance upon and in conformity with information furnished in
writing to the Company by any Indemnified Person or underwriter for such
Indemnified Person expressly for use in connection with the preparation of
the Registration Statement, the prospectus or any such amendment thereof or
supplement thereto, if such prospectus was timely made available by the
Company pursuant to Section 3(c) hereof; (II) with respect to any preliminary
or final prospectus shall not inure to the benefit of any Indemnified Person
if the untrue statement or omission of material fact contained in the
preliminary or final prospectus was corrected in the prospectus, as then
amended or supplemented, if such corrected prospectus was timely made
available by the Company pursuant to Section 3(c) hereof; and (III) shall not
apply to amounts paid in settlement of any Claim if such settlement is
effected without the prior written consent of the Company, which consent
shall not be unreasonably withheld. Such indemnity shall remain in full force
and effect regardless of any investigation made by or on behalf of the
Indemnified Person.

                  (b) In connection with any Registration Statement, the Buyer
agrees to indemnify and hold harmless, to the same extent and in the same manner
set forth in Section 6(a), the Company, each of its directors, each of its
officers who signs the Registration Statement, each person, if any, who controls
the Company within the meaning of the 1933 Act or the 1934 Act, any underwriter
and any other stockholder selling securities pursuant to the Registration
Statement or any of its directors or officers or any person who controls such
stockholder or underwriter within the meaning of the 1933 Act or the 1934 Act
(collectively and together with an Indemnified Person, an "Indemnified Party"),
against any Claim to which any of them may become subject, under the 1933 Act,
the 1934 Act or otherwise, insofar as such Claim arises out of or is based upon
any Violation, in each case to the extent (and only to the extent) that such
Violation occurs in reliance upon and in conformity with written information
furnished to the Company by the Buyer expressly for use in connection with such
Registration Statement; and the Buyer will reimburse any legal or other expenses
reasonably incurred by any Indemnified Party, promptly as such expenses are
incurred and are due and payable, in connection with investigating or defending
any such Claim; PROVIDED, HOWEVER, that the indemnity agreement contained in
this Section 6(b) shall not apply to amounts paid in settlement of any Claim if
such settlement is effected without the prior written consent of the Buyer,
which consent shall not be unreasonably withheld; PROVIDED, FURTHER, HOWEVER,
that the

                                       8
<PAGE>

Buyer shall be liable under this Section 6(b) for only that amount of a Claim
as does not exceed the amount by which the net proceeds to the Buyer from the
sale of Registrable Securities pursuant to such Registration Statement
exceeds the cost of such Registrable Securities to the Buyer. Such indemnity
shall remain in full force and effect regardless of any investigation made by
or on behalf of such Indemnified Party. Notwithstanding anything to the
contrary contained herein, the indemnification agreement contained in this
Section 6(b) with respect to any preliminary or final prospectus shall not
inure to the benefit of any Indemnified Party if the untrue statement or
omission of material fact contained in the preliminary or final prospectus
was corrected on a timely basis in the prospectus, as then amended or
supplemented.

                  (c) The Company shall be entitled to receive indemnities from
underwriters, selling brokers, dealer managers and similar securities industry
professionals participating in any distribution, to the same extent as provided
above, with respect to information so furnished in writing by such persons
expressly for inclusion in the Registration Statement.

                  (d) Promptly after receipt by an Indemnified Person or
Indemnified Party under this Section 6 of notice of the commencement of any
action (including any governmental action), such Indemnified Person or
Indemnified Party shall, if a Claim in respect thereof is to be made against any
indemnifying party under this Section 6, deliver to the indemnifying party a
written notice of the commencement thereof and the indemnifying party shall have
the right to participate in, and, to the extent the indemnifying party so
desires, jointly with any other indemnifying party similarly noticed, to assume
control of the defense thereof with counsel selected by the indemnifying party
but reasonably acceptable to the Indemnified Person or the Indemnified Party, as
the case may be; PROVIDED, HOWEVER, that an Indemnified Person or Indemnified
Party shall have the right to retain its own counsel with the fees and expenses
to be paid by the indemnifying party, if, in the reasonable opinion of counsel
retained by the indemnifying party, the representation by such counsel of the
Indemnified Person or Indemnified Party and the indemnifying party would be
inappropriate due to actual or potential differing interests between such
Indemnified Person or Indemnified Party and any other party represented by such
counsel in such proceeding. In such event, the Company shall pay for only one
separate legal counsel for the Indemnified Person or Indemnified Party. The
failure to deliver written notice to the indemnifying party within a reasonable
time of the commencement of any such action shall not relieve such indemnifying
party of any liability to the Indemnified Person or Indemnified Party under this
Section 6, except to the extent that the indemnifying party is prejudiced in its
ability to defend such action. The indemnification required by this Section 6
shall be made by periodic payments of the amount thereof during the course of
the investigation or defense, as such expense, loss, damage or liability is
incurred and is due and payable.

                  7.  CONTRIBUTION. To the extent any indemnification by an
indemnifying party is prohibited or limited by law, the indemnifying party
agrees to make the maximum contribution with respect to any amounts for which
it would otherwise be liable under Section 6 to the fullest extent permitted
by law; PROVIDED, HOWEVER, that (a) no contribution shall be made under
circumstances where the maker would not have been liable for indemnification
under the fault standards set forth in Section 6, (b) no seller of
Registrable Securities guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the 1933 Act) shall be entitled to contribution
from any seller of Registrable Securities who was not guilty of such
fraudulent misrepresentation and (c) contribution by any seller of
Registrable Securities shall be limited in amount to the amount by which the
net amount of proceeds received by such seller from the sale of such
Registrable Securities exceeds the purchase price paid by such seller for
such Registrable Securities.

                  8.  REPORTS UNDER 1934 ACT. With a view to making available to
the Buyer the benefits of Rule 144, the Company agrees to:

                                       9
<PAGE>

                  (a) make and keep public information available, as those terms
are understood and defined in Rule 144;

                  (b) file with the SEC in a timely manner all reports and other
documents required of the Company under the 1933 Act and the 1934 Act; and

                  (c) furnish to the Buyer so long as the Buyer owns Registrable
Securities, promptly upon request, (i) a written statement by the Company that
it has complied with the reporting requirements of Rule 144 and the 1934 Act,
(ii) a copy of the most recent annual or quarterly report of the Company and
such other reports and documents so filed by the Company and (iii) such other
information as may be reasonably requested to permit the Buyer to sell such
securities pursuant to Rule 144 without registration.

                  9.  AMENDMENT OF REGISTRATION RIGHTS. Any provision of this
Agreement may be amended and the observance thereof may be waived (either
generally or in a particular instance and either retroactively or
prospectively), only with the written consent of Company and the Buyer.

                  10. MISCELLANEOUS.

                  (a) All notices and other communications required or permitted
to be given hereunder shall be in writing and shall be deemed to be given when
personally delivered by hand, by telephone line facsimile transmission (with
answer back confirmation) or by overnight courier (such as FedEx), to the
parties at the following addresses, or at such other address for a party (as
specified in like notice):

                  If to the Buyer:

                           RS Investment Management Co. LLC
                           388 Market Street, Suite 200
                           San Francisco, California 94111
                           Attention:
                                      --------------------
                           Facsimile No.:
                                          ----------------

                  With a copy to:

                           Attention:
                                      --------------------
                           Facsimile No.:
                                          ----------------

                  If to the Company:

                           SCC Communications Corp.
                           6285 Lookout Road
                           Boulder, Colorado 80301
                           Attention: Michael D. Dingman, Jr.
                                      -----------------------
                           Facsimile No.: 303.581.0900
                                          ------------

                  With a copy to:

                           Brownstein Hyatt & Farber, P.C.
                           410 Seventeenth Street, Suite 2200

                                       10
<PAGE>

                           Denver, Colorado 80202
                           Attention: J. David Hershberger, Esq.
                           Facsimile No.: 303-223-1111 or 303-223-0951

                  (b) Failure of any party to exercise any right or remedy under
this Agreement or otherwise, or delay by a party in exercising such right or
remedy, shall not operate as a waiver thereof.

                  (c) This Agreement shall be enforced, governed by and
construed in accordance with the laws of the State of Colorado applicable to
agreements made and to be performed entirely within such State. In the event
that any provision of this Agreement is invalid or unenforceable under any
applicable statute or rule of law, then such provision shall be deemed
inoperative to the extent that it may conflict therewith and shall be deemed
modified to conform with such statute or rule of law. Any provision hereof which
may prove invalid or unenforceable under any law shall not affect the validity
or enforceability of any other provision hereof.

                  (d) This Agreement constitutes the entire agreement among the
parties hereto with respect to the subject matter hereof. There are no
restrictions, promises, warranties or undertakings, other than those set forth
or referred to herein. This Agreement supersedes all prior agreements and
understandings among the parties hereto with respect to the subject matter
hereof.

                  (e) This Agreement shall inure to the benefit of and be
binding upon the successors and assigns of each of the parties hereto.

                  (f) All pronouns and any variations thereof refer to the
masculine, feminine or neuter, singular or plural, as the context may require.

                  (g) The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

                  (h) Each party shall do and perform, or cause to be done and
performed, all such further acts and things, and shall execute and deliver all
such other agreements, certificates, instruments and documents, as the other
party may reasonably request in order to carry out the intent and accomplish the
purposes of this Agreement and the consummation of the transactions contemplated
hereby.

                  (i) The language used in this Agreement will be deemed to be
the language chosen by the parties to express their mutual intent, and no rules
of strict construction will be applied against any party.

                  (j) This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original but all of which shall
constitute one and the same agreement. This Agreement, once executed by a party,
may be delivered to the other party hereto by telephone line facsimile
transmission of a copy of this Agreement bearing the signature of the party so
delivering this Agreement.

                                       11
<PAGE>

                  IN WITNESS WHEREOF, the parties have caused this Agreement to
be duly executed by their respective officers thereunto duly authorized as of
day and year first above written.

                                       SCC COMMUNICATIONS CORP.

                                       By:
                                           ------------------------------------
                                           Name: Michael D. Dingman, Jr.
                                           Title: Chief Financial Officer

                                       RS INVESTMENT MANAGEMENT CO. LLC

                                       By:
                                           ------------------------------------
                                            Name:
                                            Title:

                                       12
<PAGE>

                                                            EXAMPLE OF LETTER TO
                                                               TRANSFER AGENT

                              [Company Letterhead]

                                     [Date]

[Norwest/Wells Fargo]
   as Transfer Agent and Registrar
Address

Ladies and Gentlemen:

                  This letter shall serve as our irrevocable authorization and
direction to you (1) to transfer or re-register the certificates for the shares
of Common Stock, $.001 par value (the "Common Stock"), of SCC Communications
Corp., a Delaware corporation (the "Company"), represented by certificate
numbers _______ and _______ for an aggregate of _______ shares (the "Outstanding
Shares") of Common Stock presently registered in the name of [Name(s) of
Investors] upon surrender of such certificate(s) to you, notwithstanding the
legend appearing on such certificates. The transfer or re-registration of the
certificates for the Outstanding Shares by you should be made at such time as
you are requested to do so by the record holder of the Outstanding Shares. The
certificate issued upon such transfer or re-registration should be registered in
such name as requested by the holder of record of the certificate surrendered to
you and should not bear any legend which would restrict the transfer of the
shares represented thereby. In addition, you are hereby directed to remove any
stop-transfer instruction relating to the Outstanding Shares.

                  Contemporaneously with the delivery of this letter, the
Company is delivering to you an opinion of ________________, General Counsel of
the Company [or outside counsel], as to registration of the Outstanding Shares
for resale under the Securities Act of 1933, as amended.

                  Should you have any questions concerning this matter, please
contact me.

                                       Very truly yours,

                                       SCC COMMUNICATIONS CORP.

                                       By:
                                          -------------------------------------
                                          Name:
                                          Title:

Enclosures
cc:      [Names of Investors]

                                       13
<PAGE>

                                                            EXAMPLE OF LETTER TO
                                                              BUYER/INVESTORS

                                     [SEC Effective Date of Form S-3]

[Names and Addresses of Investors]

                            SCC COMMUNICATIONS CORP.
                             SHARES OF COMMON STOCK

Ladies and Gentlemen:

                  I am General Counsel of SCC Communications Corp., a
Delaware corporation (the "Company"), and I understand that the Company has
sold to [Names of Investors] (the "Holders") an aggregate of ________ shares
(the "Common Shares") of the Company's Common Stock, $.001 par value (the
"Common Stock"). The Common Shares were sold to the Holders pursuant to a
Subscription Agreement, dated as of May __, 2001, by and between the Holders
and the Company (the "Subscription Agreements"). Pursuant to a Registration
Rights Agreement, dated as of May __, 2001, by and between the Company and
each Holder (the "Registration Rights Agreements") entered into in connection
with the purchase by the Holders of the Common Shares, the Company agreed
with each Holder, among other things, to register for resale the Common
Shares under the Securities Act of 1933, as amended (the "1933 Act"), upon
the terms provided in the Registration Rights Agreement. Pursuant to the
Registration Rights Agreements, on ________ __, _____ the Company filed a
Registration Statement on Form S-3 (File No. 333-__________) (the
"Registration Statement") with the Securities and Exchange Commission (the
"SEC") relating to the Shares, which names the Holders as selling
stockholders thereunder.

                  [Other introductory and scope of examination language to be
                  inserted if necessary]

                  Based on the foregoing, I am of the opinion that:

                  (1) Since the Closing Date, the Company has timely filed with
         the SEC all forms, reports and other documents required to be filed
         with the SEC under the Securities 1934 Act of 1934, as amended (the
         "1934 Act"). All of such forms, reports and other documents complied,
         when filed, in all material respects, with all applicable requirements
         of the 1933 Act and the 1934 Act;

                  (2) The Registration Statement and the Prospectus contained
         therein (other than the financial statements and financial schedules
         and other financial and statistical information contained or
         incorporated by reference therein, as to which I have not been
         requested to and do not express any opinion) comply as to form in all
         material respects with the applicable requirements of the 1933 Act and
         the rules and regulations promulgated thereunder; and

                  (3) The Registration Statement has become effective under the
         1933 Act, to the best of my knowledge after due inquiry, no stop order
         proceedings with respect thereto have been instituted or threatened by
         the SEC. The Shares have been registered under the 1933 Act and may be
         resold by the respective Holders pursuant to the Registration
         Statement.

                                       14
<PAGE>

                  I have participated in the preparation of the Registration
Statement and the Prospectus, including review and discussions with officers and
other representatives of the Company, representatives of the independent public
accountants for the Company, and your representatives at which the contents of
the Registration Statement and the Prospectus contained therein and related
matters were discussed, and, although I am not passing upon and do not assume
any responsibility for the accuracy, completeness or fairness of the statements
contained in the Registration Statement and the Prospectus contained therein, on
the basis of the foregoing, nothing has come to my attention that leads me to
believe either that the Registration Statement at the time the Registration
Statement became effective contained an untrue statement of a material fact or
omitted to state a material fact required to be stated therein or necessary to
make the statements therein not misleading, or that the Prospectus contained in
the Registration Statement, as of its date, contained an untrue statement of a
material fact or omitted to state a material fact required to be stated therein
or necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading (it being understood that I have not
been requested to and do not express any view with respect to the financial
statements and schedules and other financial and statistical data included or
incorporated by reference in the Registration Statement or the Prospectus
contained therein).

                  Paragraph (3) of this opinion may be relied upon by
________________________, as Transfer Agent and Registrar (the "Transfer
Agent"), as if addressed to the Transfer Agent.

                                   Very truly yours,

cc:
   -------------------------------------
        as Transfer Agent and Registrar

                                       15

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00025-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00025-of-00352.parquet"}]]