Microsoft KB Archive/234538

= New Cryptographic APIs Need Backwards Compatibility =

Article ID: 234538

Article Last Modified on 11/1/2006

-

APPLIES TO


 * Microsoft Windows NT Server 4.0 Standard Edition
 * Microsoft Windows NT Server 4.0 Enterprise Edition

-



This article was previously published under Q234538



SYMPTOMS
Calls to the WINTRUST APIs may not work if an older encryption software development kit (SDK) was used to create these calls. These calls usually do not work because of differences in supported structure sizes between the two versions.



CAUSE
This problem occurs because the encryption support file (Softpub.dll) that is included in Windows NT 4.0 Service Pack 4 is not backwards compatible with the encryption APIs with regard to structure size.



RESOLUTION
To resolve this problem, obtain the latest service pack for Windows NT 4.0. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

152734 How to Obtain the Latest Windows NT 4.0 Service Pack

The latest service pack is also available at the following Internet location:

http://www.microsoft.com/windows/servicepacks/



STATUS
Microsoft has confirmed that this is a problem in Windows NT 4.0. This problem was first corrected in Windows NT 4.0 Service Pack 5.

Additional query words: 4.00

Keywords: kbbug kbfix kbqfe KB234538

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.