Document:

<PAGE>
Exhibit 10.50

                           CAPITAL ASSURANCE AGREEMENT

        This Capital Assurance Agreement (the "Agreement") is entered into
effective as of October 26, 2000 by and between NextBank, National Association,
a national bank ("Bank"), and NextCard, Inc., a Delaware Corporation ("Parent").

                                    RECITALS

        A.     The Bank is a national bank chartered by the Office of the
Comptroller of the Currency (the "OCC") and is authorized to due business as a
national bank limited to credit card operations; and

        B.     The OCC has requested that the Parent and the Bank enter into an
agreement setting forth the Parent's obligations to provide necessary capital
support to the Bank; and

        C.     The Board of Directors of the Bank has passed a Board Resolution
that requires the Bank to maintain certain capital levels and to develop a
Capital Plan (Capital Plan); and

        D.     For purposes of the OCC's regulations under 12 CFR Part 6, this
Agreement shall not be deemed to have been issued by the OCC and shall not
prevent the Bank from being deemed "well capitalized" so long as the Bank
satisfies the numerical standards of Section 6.4(b)(1) of such Part.

        In consideration of the mutual covenants and conditions contained
herein, the parties hereby agree as follows:

                                    AGREEMENT

        1.     Capital Assurance. The Parent hereby commits to support the
Bank's policy of maintaining a capital-to-assets ratio that exceeds all
regulatory requirements for well-capitalized institutions. In accordance with
current OCC rules and regulations, well-capitalized institutions must maintain
the following: (i) a Total Risk Based Capital to Risk Weighted Assets ratio of
10%; (ii) a Tier 1 Risk Based Capital to Risk Weighted Assets ratio of at least
6%; and (iii) a Tier 1 capital to average total assets of 5%. The Parent
covenants that if the Bank's ratios fall below the ratios required by 12 CFR
Part 6, as presently drafted or hereinafter amended, upon written notification
from the Bank's Board of Directors or the OCC, the Parent will contribute
sufficient additional capital within ten (10) days of such written notification
to return the Bank's ratios to a well-capitalized level. Such capital
contribution shall be in the form of cash or other qualified assets, as allowed
by banking regulations, and will be credited to the Bank's surplus capital
account.

<PAGE>

Exhibit 10.50

               (a)    The Parent hereby further commits:

               (i) until the Capital Plan has been adopted by the Board of
        Directors of the Bank, to ensure that the Bank's Total Risk Based
        Capital remains above 12% of Risk Weighted Assets (as defined by Call
        Report Instructions); and

               (ii) after the Capital Plan has been adopted by the Board of
        Directors of the Bank, to ensure that the Bank's capital is maintained
        at the levels specified in the Capital Plan.

               (b)    The Parent hereby further commits to ensure that the
Bank's equity capital plus its allowance for loan and lease losses does not fall
below 6.5% of total managed assets; provided that the foregoing commitment will
expire on September 16, 2002 .

        2.     Term and Termination. The term of this Agreement shall commence
on the date first above written (the "Effective Date") and will continue in
effect until the third anniversary of the effective date of the Capital Plan
referenced in the Resolution of the Board of Directors of NextBank, N.A., of
even date herewith.

        3.     No Assignments. This Agreement shall not be assigned by either
party and any attempt to assign shall be void and without any effect except upon
the express written consent of the parties.

        4.     Notices. All notices or other communications hereunder shall be
in writing and shall be made by hand delivery, telex, telecopier or registered
or certified mail, postage prepaid, return receipt requested, addressed as
follows:

NextCard, Inc.                          NextBank, N.A.
595 Market Street - Suite 1800          c/o Next Card, Inc.
San Francisco, CA 94105                 595 Market Street - Suite 1800
ATTN: Corporate Secretary               San Francisco, CA 94105
                                        ATTN: Corporate Secretary

or at such other address as shall be furnished by either of the parties by like
notice, and such notice or communication shall be deemed to have been given or
made as of the date so delivered if delivered personally; when answered back, if
telexed; when receipt is acknowledged, if telecopied; and five (5) calendar days
after so mailed, if sent by registered or certified mail.

        5.     Entire Agreement. This Agreement constitutes the entire agreement
between the parties with respect to the subject matter hereof, and all prior
arrangements and negotiations between the parties with respect to this Agreement
are hereby deemed to be merged herein. This Agreement may be modified or amended
only by mutual written consent of the parties.

<PAGE>

Exhibit 10.50

        6.     Confidentiality. The Parent and the Bank understand and agree
that the terms of this Agreement are proprietary and confidential information,
and both parties agree that they shall not disclose such information to any
other person or entity without the other party's prior written consent, or
otherwise as required by law.

        7.     Governing Law. To the extent that federal law does not control,
this Agreement shall be governed by and construed in accordance with the laws of
the State of California.

        8.     Severability. If any portion of this Agreement shall be held
invalid or inoperative then, so far as is reasonable and possible, the remainder
of this Agreement shall be considered valid and operative, and effect shall be
given to the intent manifested by the portion held invalid or inoperative.

        9.     Attorney's Fees. The prevailing party in any action between the
parties arising from or relating to this Agreement shall be entitled to recover
from the other party all reasonable attorney's fees and other costs incurred in
such proceeding.

IN WITNESS WHEREOF, the parties have executed this Agreement.

                                        PARENT (NextCard, Inc.)

                                        By:
                                           -----------------------------------
                                               John V. Hashman
                                               President &
                                               Chief Executive Officer

                                        BANK (NextBank, N.A.)

                                        By:
                                           -----------------------------------
                                               John V. Hashman
                                               President &
                                               Chief Executive Officer<PAGE>
                                                                    Exhibit 10.1

                                    AGREEMENT

               This AGREEMENT, dated as of September 30, 2001 (this
"Agreement"), is entered into by and between Critical Path, Inc. ("Critical
Path") and Vectis Group, LLC ("Vectis Group").

               WHEREAS, Critical Path and Vectis Group are parties to that
certain (a) Advisory Services Letter Agreement, dated as of May 30, 2001 (the
"Advisory Services Letter Agreement"), a copy of which is attached hereto as
Exhibit A; (b) Strategic Analysis Letter Agreement, dated as of March 29, 2001
(the "Strategic Analysis Letter Agreement"), a copy of which is attached hereto
as Exhibit B; and (c) Finder and Advisory Letter Agreement, dated as of March
29, 2001 (the "Finder and Advisory Letter Agreement" and, together with the
Advisory Services Letter Agreement and the Strategic Analysis Letter Agreement,
the "Letter Agreements"), a copy of which is attached hereto as Exhibit C.

               WHEREAS, Critical Path and Vectis Group are parties to that
certain (a) Advisory Services Indemnification Agreement, dated as of May 30,
2001 (the "Advisory Services Indemnification Agreement"), a copy of which is
attached hereto as Exhibit D; (b) Strategic Analysis Indemnification Agreement,
dated as of March 29, 2001 (the "Strategic Analysis Indemnification Agreement"),
a copy of which is attached hereto as Exhibit E; and (c) Finder and Advisory
Indemnification Agreement, dated as of March 29, 2001 (the "Finder and Advisory
Indemnification Agreement" and, together with the Advisory Services
Indemnification Agreement and the Strategic Analysis Indemnification Agreement,
the "Indemnification Agreements"), a copy of which is attached hereto as
Exhibit F.

               WHEREAS, Critical Path and Vectis Group desire to, among other
things, amend the Strategic Analysis Letter Agreement and to terminate each of
the Letter Agreements.

               NOW, THEREFORE, the parties hereto hereby agree as follows:

        Section 1. Termination of the Letter Agreements

        1A.    Vectis Group hereby agrees to waive any and all notice provisions
with respect to termination contained in each of the Letter Agreements.

        1B.    Critical Path and Vectis Group hereby agree that each of the
Letter Agreements shall terminate effective as of September 30, 2001 in all
respects, except that (i) Vectis shall be paid the Finder's Fee (as defined in
the Finder and Advisory Letter Agreement) contemplated by the Finder and
Advisory Letter Agreement in connection with the financing currently being
negotiated (the "Contemplated Financing") among Critical Path and certain
Qualified Prospective Purchasers (as defined in the Finder and Advisory Letter
Agreement) including without limitation, General Atlantic Partners 74, L.P. and
affiliated entities and Hutchison Whampoa and affiliate entities. Vectis Group
shall also be paid a Finder's Fee upon exercise of any warrants issued in
connection with the Contemplated Financing; (ii) Vectis shall be paid as
contemplated under the Strategic Analysis Letter Agreement in connection with
the previously closed Trans, IPC and Broker transactions; and (iii) Critical
Path shall honor the terms of the Warrant previously issued to Vectis pursuant
to the Strategic Analysis Letter Agreement.

<PAGE>
        1C.    Notwithstanding the termination of each of the Letter Agreements
pursuant to Section 1B hereof, each of the Indemnification Agreements is hereby
ratified by Critical Path and Vectis Group and shall remain in full force and
effect in accordance with its terms. For avoidance of doubt, Critical Path
hereby agrees to indemnify and hold harmless the Indemnified Persons (as defined
in the Finder and Advisory Indemnification Agreement) for any Losses (as defined
in the Finder and Advisory Indemnification Agreement) in accordance with the
terms and provisions of the Finder and Advisory Indemnification Agreement that
relate to, arise out of, or are based upon the Contemplated Financing.

        Section 2. Miscellaneous.

        2A.    This Agreement embodies the complete agreement and understanding
among the parties hereto with respect to the subject matter hereof and
supersedes and preempts any prior understandings, agreements or representations
by or among the parties, written or oral, which may have related to the subject
matter hereof in any way.

        2B.    No modification, amendment or waiver of any provision of this
Agreement shall be effective against any either party hereto unless such
modification, amendment or waiver is approved in writing by each party hereto.

        2C.    This Agreement may be executed simultaneously in two or more
counterparts, any one of which need not contain the signatures of more than one
party, but all such counterparts taken together shall constitute one and the
same agreement.

        2D.    Section headings used in this Agreement are for convenience only
and are not to affect the construction of, or to be taken into consideration in
interpreting, such agreement.

        2E.    This Agreement shall be governed by and construed in accordance
with the laws of the State of California, applicable to contracts made and to be
performed therein (excluding the conflicts of laws rules).

                                    * * * * *

                                       2
<PAGE>

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

                                   CRITICAL PATH, INC.

                                   By: /s/ Michael J. Zukerman
                                       ------------------------------------
                                       Name:  Michael J. Zukerman
                                       Title: SVP and General Counsel

                                   VECTIS GROUP, LLC

                                   By: /s/ Matthew T. Hobart
                                       ------------------------------------
                                       Name:  Matthew T. Hobart
                                       Title: Managing Director and Chief
                                              Financial Officer

<PAGE>

                                    EXHIBIT A
                       ADVISORY SERVICES LETTER AGREEMENT

<PAGE>

                                    EXHIBIT B
                       STRATEGIC ANALYSIS LETTER AGREEMENT

<PAGE>

                                    EXHIBIT C
                      FINDER AND ADVISORY LETTER AGREEMENT

<PAGE>

                                    EXHIBIT D
                   ADVISORY SERVICES INDEMNIFICATION AGREEMENT

<PAGE>

                                    EXHIBIT E
                  STRATEGIC ANALYSIS INDEMNIFICATION AGREEMENT

<PAGE>

                                    EXHIBIT F
                  FINDER AND ADVISORY INDEMNIFICATION AGREEMENT

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00031-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00031-of-00352.parquet"}]]