Microsoft KB Archive/191476

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BUG: Windows 98 Upgrade Overwrites Newer Oleacc.dll Versions

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Q191476

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The information in this article applies to:


 * Microsoft Win32 Software Development Kit (SDK), on platform(s):
 * the operating system: Microsoft Windows 98

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SYMPTOMS
Windows 98 setup will overwrite a newer version of the Oleacc.dll, which is used in Microsoft Active Accessibility support, with version 4.70.1210. Users with accessibility aids or other utilities that install newer versions, or beta versions of Microsoft Active Accessibility, may find that their accessibility aid does not work correctly with the 1210 version of Oleacc.dll.

CAUSE
Windows 98 setup ensures that core operating system files are always overwritten upon installation of the operating system.

RESOLUTION
The following procedure should be used to revert back to build 1713 of OLEACC.DLL from build 1210.


 * 1) In Windows 98, click the Start menu, select Programs, Accessories-System Tools, and then System Information.
 * 2) In the System Information window, click the Tools menu and select the Version Conflict Manager menu item.
 * 3) Select Oleacc.dll as the File and click on the "Restore Selected Files" button on the bottom of that dialog box.

STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. We are researching this bug and will post new information here in the Microsoft Knowledge Base as it becomes available.