Help and Support
 

powered byLive Search

PRB: ADSI 2.5 and MDAC 2.6 Compatibility Issues

View products that this article applies to.
Article ID:275917
Last Review:May 15, 2006
Revision:6.0
This article was previously published under Q275917

SYMPTOMS

After you install Microsoft Data Access Components version 2.6, queries that use the Active Directory Services Interfaces (ADSI) OLEDB provider, ADSDSOObject, may return the following error:
Error -2147221164 (80040154) : "Class not registered"

Back to the top

CAUSE

Earlier MDAC components, on which the ADSI 2.5 provider depends, were removed.

Back to the top

RESOLUTION

This problem is resolved in the version of ADSI that is installed by the Directory Services Client (DSClient) for Microsoft Windows NT 4.0.

Back to the top

MORE INFORMATION

ADSI version 2.5 depends on legacy components of MDAC that were removed in MDAC version 2.6. The version of ADSI that is available through the DSClient does not depend on these components. Likewise, the version of ADSI that is present as a system library in Microsoft Windows 2000 does not depend on these legacy components. In either of these installations, ADSI is fully compatible with MDAC 2.6.

If it is not possible to use the DSClient run time for Windows NT 4.0 or to run on a Windows 2000 computer, an installation of MDAC 2.6 can be rolled back to an earlier version. For details, see the following Microsoft Web site:
http://support.microsoft.com/kb/842193/en-us (http://support.microsoft.com/kb/842193/en-us)


Note ADSI 2.5 is not compatible with any version of MDAC later than MDAC 2.5.

Back to the top

REFERENCES

For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
216709 (http://support.microsoft.com/kb/216709/EN-US/) ADSI 2.0, 2.5, and MDAC 2.1 Compatibility Issues
223048 (http://support.microsoft.com/kb/223048/EN-US/) FIX: Using ADO with ADSI Returns 'Error 800a01ad (429)'
216290 (http://support.microsoft.com/kb/216290/EN-US/) INFO: Determining Which Version of ADSI Is Installed

Back to the top

APPLIES TO
•Microsoft Active Directory Service Interfaces 2.5
•Microsoft Data Access Components 2.6

Back to the top

Keywords: 
kbmsg kbprb KB275917

Back to the top

Article Translations

 

Other Support Options

  • Need More Help?
    Contact a Support professional by E-mail, Online or Phone.
  • Customer Service
    For non-technical assistance with product purchases, subscriptions, online services, events, training courses, corporate sales, piracy issues, and more.
  • Newsgroups
    Pose a question to other users. Discussion groups and Forums about specific Microsoft products, technologies, and services.