You are currently offline, waiting for your internet to reconnect

Cryptographic Service Provider Not Working After Service Pack 3

This article was previously published under Q185253
This article has been archived. It is offered "as is" and will no longer be updated.
If you install Microsoft Windows NT Service Pack 3 when Microsoft EnhancedCryptographic Service Provider (CSP) and Microsoft CyrptoAPI versions 1.0and 2.0 are installed on your computer, entries for the digital signaturemay be damaged or missing from the registry. If the CSP is not properlyregistered, it does not load and no error message is displayed.

The Advapi32.dll file, included with Windows NT Service Pack 3, maygenerate either of the following error values:

  • 0x8009001A (NTE_KEYSET_ENTRY_BAD)
  • 0x80090006 (NTE_BAD_SIGNATURE)
A fix to this problem is available that makes the necessary changes to theregistry. To obtain the fix, download the appropriate self-extractingexecutable file:

File nameDateSizePlatform

These files can be obtained from the following Microsoft FTP site:

Each self-extracting executable file contains the following files:

  • Readme.txt
  • Rsaenh.reg
The Readme.txt file contains instructions about how to merge the requiredkeys into your registry, and the Rsaenh.reg file contains the registry keyvalues needed to resolve the problem.
Microsoft has confirmed this to be a problem in Microsoft Windows NTService Pack 3.
For more information about Microsoft Enhanced Cryptographic ServiceProvider and Microsoft CyrptoAPI, please see the following Microsoft Website:

For additional information about how to download files from the MicrosoftFTP site, please see the following article in the Microsoft KnowledgeBase:

ARTICLE-ID: 119591
TITLE : How to Obtain Microsoft Support Files from Online Services

Article ID: 185253 - Last Review: 12/05/2015 08:38:45 - Revision: 1.1

Microsoft Windows NT Workstation 4.0 Developer Edition, Microsoft Windows NT Server 4.0 Standard Edition, Microsoft Windows NT Server 4.0 Enterprise Edition

  • kbnosurvey kbarchive kbprb kbprogramming kbsetup KB185253