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This article describes how to determine whether Microsoft Active Accessibility is installed on a computer, and if so, which version is installed.

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Microsoft Knowledge Base Article

This article contents is Microsoft Copyrighted material.
©2005-©2007 Microsoft Corporation. All rights reserved. Terms of Use | Trademarks

Article ID: 244822 - Last Review: January 25, 2007 - Revision: 2.4

How To Determine Which Version of Microsoft Active Accessibility Is Installed

System TipThis article applies to a different version of Windows than the one you are using. Content in this article may not be relevant to you. Visit the Windows Vista Solution Center
This article was previously published under Q244822

SUMMARY

This article describes how to determine whether Microsoft Active Accessibility is installed on a computer, and if so, which version is installed.

MORE INFORMATION

To determine whether Active Accessibility is installed on a Windows 95- or Windows 98-based computer, check the System directory for the Oleacc.dll file. For Microsoft Windows NT 4.0 Service Pack 4 (SP4) and later, check for the Oleacc.dll file in the System32 directory. If this file is not found, Active Accessibility is not installed.

For Active Accessibility version 1.2 and later, use the GetOleaccVersionInfo function to programmatically determine which version of the Software Development Kit (SDK) is installed on a computer. Please consult the documentation in MSDN for more information on how to use the GetOleaccVersionInfo function.

For earlier versions of Active Accessibility, use the GetFileVersionInfo function to extract the version information from the Oleacc.dll file.

REFERENCES

Microsoft Active Accessibility SDK

APPLIES TO
  • Microsoft Windows NT 4.0 Service Pack 4
  • Microsoft Windows NT Workstation 4.0 Developer Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95
Keywords: 
kbaacc kbhowto KB244822
       

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