DOCUMENT:Q305929 08-MAY-2002 [winnt] TITLE :Err Msg: This Certificate Has an Invalid Digital Signature PRODUCT :Microsoft Windows NT PROD/VER::4.0 SP6a OPER/SYS: KEYWORDS:kbenv kberrmsg ====================================================================== ------------------------------------------------------------------------------- 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 ------------------------------------------------------------------------------- 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: ====================================================================== 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 ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2002.