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Q305929: Err Msg: This Certificate Has an Invalid Digital Signature

Article: Q305929
Product(s): Microsoft Windows NT
Version(s): 4.0 SP6a
Operating System(s): 
Keyword(s): kbenv kberrmsg
Last Modified: 08-MAY-2002

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The information in this article applies to:

- Microsoft Windows NT Server version 4.0 SP6a 
- Microsoft Windows NT Server, Enterprise Edition version 4.0 SP6a 
- Microsoft Windows NT Workstation version 4.0 SP6a 
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SYMPTOMS
========

When you visit a secure Web site (a site whose address begins with "https://")
that uses Secure Sockets Layer (SSL), you may receive the following error
message when you view the server certificate, even if the server certificate is
properly trusted and valid:

  This certificate has an invalid digital signature.

This problem occurs after you install the Windows NT 4.0 Security Rollup Package
(SRP) on a computer that is running Microsoft Internet Explorer 5.5 Service Pack
2 (SP2) or Internet Explorer 5.01 Service Pack 2 (SP2). Note that this problem
is with the user interface only; no functionality is lost.

RESOLUTION
==========

A supported fix is now available from Microsoft, but it is only intended to
correct the problem described in this article and should be applied only to
systems experiencing this specific problem.

To resolve this problem, contact Microsoft Product Support Services to obtain the
fix. For a complete list of Microsoft Product Support Services phone numbers and
information on support costs, please go to the following address on the World
Wide Web:

  http://support.microsoft.com/default.aspx?scid=fh;EN-US;CNTACTMS

NOTE: In special cases, charges that are normally incurred for support calls may
be canceled, if a Microsoft Support Professional determines that a specific
update will resolve your problem. Normal support costs will apply to additional
support questions and issues that do not qualify for the specific update in
question.

The following file is available for download from the Microsoft Download Center:

  DownloadDownload Q305929i.exe now
  (http://www.microsoft.com/ntserver/nts/downloads/critical/q305929/default.asp)

Release Date: August 23, 2001

For additional information about how to download Microsoft Support files, click
the article number below to view the article in the Microsoft Knowledge Base:

  Q119591 How to Obtain Microsoft Support Files from Online Services

Microsoft used the most current virus detection software available on the date of
posting to scan this file for viruses. After it is posted, the file is housed on
secure servers that prevent any unauthorized changes to the file.

The English version of this fix should have the following file attributes or
later:

  Date         Time   Version       Size     File name    Platform
  ----------------------------------------------------------------
  05-Jul-2001  15:04  5.131.1877.9  371,472  Crypt32.dll  Intel
  27-Jun-2000  19:57  5.131.1877.9   62,736  Softpub.dll  Intel

NOTE: Because of file dependencies, this hotfix requires Microsoft Windows NT 4.0
Service Pack 6a.



STATUS
======

Microsoft has confirmed this to be a problem in the Windows NT 4.0 Security
Rollup Package.

MORE INFORMATION
================

For additional information about the SRP, click the article number below to view
the article in the Microsoft Knowledge Base:

  Q299444 Post-Windows NT 4.0 Service Pack 6a Security Rollup Package (SRP)

Additional query words:

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Keywords          : kbenv kberrmsg 
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTS400sp6 kbWinNTS400search kbWinNTSEnt400SP6a kbWinNTW400SP6a
Version           : :4.0 SP6a
Hardware          : ALPHA x86
Issue type        : kbbug
Solution Type     : kbfix

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