Document:

Exhibit 10.35

                         RESTRICTIVE COVENANT AGREEMENT

              THIS RESTRICTIVE COVENANT AGREEMENT ("Agreement") is made
effective as of this 1st day of November, 1999, by and between Regent Assisted
Living, Inc., an Oregon corporation (the "Company"), and Dale J. Zulauf (the
"Officer").

              A. The Company is principally engaged in the business of owning,
operating and developing assisted living communities (the "Business").

              B. Pursuant to that certain resolution of the Company's Board of
Directors dated to be effective November 1, 1999, Officer has been granted an
option to purchase 78,000 shares of the Company's common stock (the "Option")
through the Regent Assisted Living, Inc. 1995 Stock Incentive Plan adopted
August 28, 1995 (the "Plan"), on the terms and subject to the conditions of the
Incentive Stock Option Agreement dated the date hereof (the "Option Agreement")
between the Company and the Officer.

              C. As of this date, Officer has commenced employment with the
Company pursuant to the Employment Agreement dated this date (the "Employment
Agreement") between the Company and the Officer. As an employee of the Company
pursuant to the Employment Agreement, the Officer is expected to obtain
extensive knowledge of the operations and financial condition of the Business,
as well as strong contacts and relationships with the Company's suppliers,
customers and employees.

              D. The Company is unwilling to enter into the Option Agreement or
the Employment Agreement unless the Officer agrees to be bound by the terms of
this Agreement.

              E. To induce the Company to enter into the Option Agreement and
the Employment Agreement, the Officer desires to execute this Agreement and to
be bound by the terms hereof.

                                    AGREEMENT

              NOW, THEREFORE, in consideration of the covenants and mutual
agreements set forth herein and other good and valuable consideration, including
Purchaser's execution and delivery of the Option Agreement and the Employment
Agreement, the receipt and sufficiency of which are hereby acknowledged, the
parties agree as follows:

              1. Restrictive Covenants. Except for the benefit of the Company,
the Officer shall not, either directly or indirectly, on his own account, or as
an employee, consultant, agent, partner, joint venturer, owner, officer,
director or stockholder (except for holdings of less than two percent (2%) of
the stock of a publicly traded company which are held solely for investment
purposes, and which do not involve the performance of any active services by the
Officer for any other person, firm, partnership, corporation or other entity, or
in any other capacity), in any way:

                 (a) From the date of this Agreement until the later of two
     years after the date of this Agreement or one year after the termination of
     the Officer's employment by the Company for any reason pursuant to the
     Employment Agreement, within a 10 mile radius of substantially all Regent
     Assisted Living, Inc. communities then in operation, conduct, engage in,
     aid or assist anyone in the

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conduct of a business which is competitive with the Business (provided, however,
this provision shall not apply if Officer's employment by the Company is
terminated by the Company without Cause (as defined in the Employment
Agreement)); or

                 (b) From the date of this Agreement until the later of two
     years after the date of this Agreement or one year after the termination of
     the Officer's employment by the Company for any reason pursuant to the
     Employment Agreement, with respect to the type of products or services
     offered for sale to the Company's residents and other customers, solicit,
     divert, take away or accept orders or business from, or attempt to solicit,
     divert, take away or accept orders from, any person, firm, partnership,
     corporation or other entity, wherever located, for whom the Company
     performed any services or to whom the Company sold any product within the
     immediately preceding twelve (12) month period; or

                 (c) From the date of this Agreement until the later of two
     years after the date of this Agreement or one year after the termination of
     the Officer's employment by the Company for any reason pursuant to the
     Employment Agreement, hire solicit for hire or attempt to solicit for hire
     for employment, or engage, any person who is employee or agent of the
     Company or was an employee or agent of the Company within the immediately
     preceding twelve (12) month period; or

                 (d) Use for himself or for any other person, firm, corporation,
     partnership, association or other entity, or divulge or disclose in any
     manner to any person, firm, corporation, partnership, association or other
     entity, the identity of the Company's residents or other customers, the
     methods of operation, financial data, sources of supply, know-how, pricing
     information, records, books, agreements, techniques, forms, procedures,
     systems, financial information or other trade secrets or confidential or
     proprietary information used in or relating to the Business (hereinafter
     referred to as the "Confidential Information"). Notwithstanding anything to
     the contrary contained in this Agreement, the restrictions on the Officer's
     disclosure and use of the Confidential Information shall not apply to (i)
     information or techniques which are or become generally known to the
     public, other than through disclosure (whether deliberate or inadvertent)
     by the Officer; or (ii) disclosure of Confidential Information in judicial
     or administrative proceedings to the extent the Officer is legally
     compelled to disclose such information, provided the Officer shall have
     used the Officer's best efforts, and shall have afforded the Company the
     opportunity, to obtain an appropriate protective order or other assurance
     satisfactory to the Company of confidential treatment for the information
     required to be so disclosed.

                 (e) Notwithstanding anything to the contrary in this Agreement,
     Executive may hold an interest in any congregate care or assisted living
     property approved by the Company's Board of Directors (which approval shall
     not be unreasonably withheld), provided that Executive shall hold any such
     interest for investment purposes only and shall not take an active role in
     the management of any such properties and, further, that such properties do
     not directly compete with the business of the Company.

The Company's rights and Officer's obligation under each of the paragraphs above
is in addition to and not in lieu of the respective rights and obligations of
the Company and Officer under any other paragraph above.

              2. Remedies. The Officer hereby agrees that the periods of time,
geographical scope and other restrictions provided for in Section 1 above are
the minimum such terms necessary to protect the Company and its successors and
assigns in the use and enjoyment of the goodwill associated with the

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Business. The Officer further agrees that damages cannot adequately compensate
the Company in the event of the Officer's breach of any of the covenants
contained in Section 1 above. Accordingly, the Officer agrees that in the event
of a breach of any of such covenants, the Company shall be entitled to obtain
injunctive relief against the Officer, without bond but upon due notice, in
addition to such other relief as may be available at law or in equity. Obtaining
of any such injunction by the Company shall not be deemed an election of
remedies or a waiver of any right to obtain any other remedies the Company may
have at law or in equity. The existence of any claim or cause of action of the
Officer against the Company or the Company of whatever nature shall not
constitute a defense to the Company's enforcement of such restrictive covenants.
To the extent any of such restrictive covenants are deemed unenforceable by
virtue of their scope, in terms of geographical area or length of time or
otherwise, but may be made enforceable by limitations thereon, the Officer
agrees that such covenants shall be enforceable to the fullest extent
permissible under the laws and public policies of the jurisdiction in which
enforcement is sought. The parties hereby authorize any court of competent
jurisdiction to modify or reduce the scope of the restrictive covenants to the
extent necessary to make such restrictive covenants enforceable.

              3. Indemnification. The Officer agrees to indemnify and hold the
Company and its affiliates harmless from and against any and all loss, cost,
damage, liability and expense including, without limitation, reasonable
attorneys' fees, court costs and reasonable litigation expenses) which the
Company or any such affiliate shall suffer, sustain or incur as a result of,
arising from or in connection with any failure or breach by the Officer
hereunder.

              4. Miscellaneous.

                 (a) Written Agreement to Govern. This Agreement, the Option
     Agreement, and the Employment Agreement set forth the entire understanding
     of the parties with respect to the subject matter hereof, supersede all
     prior discussions, negotiations, understandings or written agreements among
     the parties hereto relating to the subject matter contained herein, and
     merge all prior and contemporaneous discussions among the parties.

                 (b) Severability. The parties expressly agree that it is not
     the intention of any party hereto to violate any public policy, statutory
     or common law rules, regulations, treaties or decisions of any government
     or agency thereof. Subject to Section 2 of this Agreement, if any provision
     of this Agreement is judicially or administratively interpreted or
     construed as being in violation of any such provision, such articles,
     sections, sentences, words, clauses or combinations thereof shall be
     inoperative, and the remainder of this Agreement shall remain binding upon
     the parties hereto.

                 (c) Law to Govern. The validity, construction and
     enforceability of this Agreement shall be governed in all respects by the
     laws of the State of Oregon, without regard to its conflict of laws rules.
     The Officer hereby consents and submits to the exclusive jurisdiction of
     the courts of the State of Oregon and the U.S. District Court for the
     District of Oregon with respect to any actions or causes of action arising
     hereunder. The Officer further agrees that Portland, Oregon shall be the
     exclusive venue of any actions or causes of action arising hereunder.

                 (d) Successors and Assigns. This Agreement shall be binding
     upon and shall inure to the benefit of the parties hereto and their
     respective heirs, executors, administrators, personal representatives,
     successors and assigns.

                 (e) Waiver of Provisions. The terms, covenants,
     representations, warranties and conditions of this Agreement may be waived
     only by a written instrument executed by the party

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     waiving compliance. The failure of any party at any time to require
     performance of any provisions hereof shall, in no manner, affect the right
     at a later date to enforce the same. No waiver by any party of any
     condition, or breach of any provision, term or covenant contained in this
     Agreement, whether by conduct or otherwise, in any one or more instances,
     shall be deemed to be or construed as a further or continuing waiver of any
     such condition or of the breach of any other provision, term or covenant of
     this Agreement.

              IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the date first written above.

                                              OFFICER

                                              /s/ Dale J. Zulauf
                                              -------------------
                                              Dale J. Zulauf

                                              REGENT ASSISTED LIVING, INC.

                                              By:/s/ Walter C. Bowen
                                                 -------------------
                                                 Walter C. Bowen, President

Page 4 - RESTRICTIVE AGREEMENT<PAGE>

                                                                   Exhibit 10.17

                                          [Data Critical Corporation Letterhead]

November 11, 1999
Mr. Robert A. May
18047 NE 99th Court
Redmond, WA 98052

Dear Bob:

It is my pleasure to offer you the position of Vice President, Operations
for Data Critical Corporation ("Data Critical" or "the Company"). You will
be reporting directly to the Chief Executive Officer. Your duties will be
focused on all aspects of operations, including overseeing engineering,
manufacturing and quality assurance and managing our outsourced
manufacturing relationships.

Our offer to you includes the following:

 .  A signing bonus of $20,000 in cash, payable between December 20, 1999
   and January 10, 2000.
 .  A monthly salary of $10,416.67 (equating to $125,000 per year).
 .  An annual bonus targeted at 20% of your annual compensation based on
   achievement of agreed-upon objectives.
 .  Options to acquire 50,000 shares of Data Critical common stock that
   will vest quarterly over a four-year period, provided you are an
   employee of the Company at that time. Your option price will be the
   closing market price of Data Critical common stock on your start date.

You will be eligible to participate in our employee benefits program. Data
Critical currently pays all premiums for its employees and their
dependents' medical, dental, vision, prescription drug card coverage and
employee assistance program through group plans. In addition, DCC pays for
basic life, accidental death and dismemberment and long-term disability
insurance for its employees. Pursuant to our current plan, you will be
eligible for these group benefits beginning with the first day of the
month following your start date. All group insurance benefits are subject
to change.

The Company offers a 401(k) plan to all eligible employees. This is an
employee-contribution-only plan provided as a retirement vehicle and as
means of deferring federal income taxes. You may begin making
contributions through payroll deduction as of the first payroll of the
calendar month following your date of hire.

We hope you will enjoy a productive and rewarding relationship with us.
Nonetheless, employment termination can occur for any number of reasons
and you should understand that your employment in the State of Washington
is at will, except as noted per the paragraph below.

In the event that the Company terminates you at any point in time without
cause for a period of eighteen months after the date of this letter, Data
Critical will continue to pay
<PAGE>

your monthly salary ($10,416.67 per month) for a period of six months after
termination. For purposes of this letter, "cause" shall mean, the commission of
an act of fraud or dishonesty in the course of your employment with Data
Critical; conviction of a crime constituting a felony or in respect of any act
of fraud, dishonesty or moral turpitude; failure to perform the duties assigned
to you material to the business conduct of Data Critical under Circumstances in
which you knew or should have reasonably known that such failure would be
detrimental to Data Critical, unless you remedy such failure not later than 30
days following delivery to you of a written notice from Data Critical describing
such failure in reasonable detail.

This offer remains valid through November 16, 1999 at 12:00 p.m. PDT, and
your expected start date is Friday, November 19, 1999. As a condition of
employment, we require all employees to sign a confidentiality agreement,
a copy of which is enclosed for your review. You may indicate your
acceptance of the terms outlined herein by signing and returning this
letter to me.

All of us are extremely excited about your joining the team at Data
Critical. Please call me at (425) 482-7025 with any questions that you may
have.

Sincerely,

/s/  Michael E. Singer
----------------------
Michael E. Singer

Accepted:  /s/ Robert A. May
           -----------------
           Robert A. May

Date: November 15, 1999

CC:  Jeffrey S. Brown
    Chief Executive Officer

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