Article ID: 231793
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After you install Windows 98 Second Edition, you may be notified by the System File Checker tool (SFC) that the Setupx.dll file is corrupted.
This issue can occur if the verification table that SFC uses is not current.
To resolve this issue, use the appropriate method:
Update the Verification TableWhen the Changed Files dialog box appears, click Update verification information, and then click OK.
Extract a New Setupx.dll FileIf you are not sure if the file is actually corrupted, extract a new version of the file from the Windows 98 Second Edition CD-ROM.
For information about how to use System File Checker to extract a file, please see the following article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/129605/EN-US/ )How to Extract Original Compressed Windows Files
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.
You may also be notified by SFC that the Wltunins.exe file is corrupted. If this occurs, use the resolution described above to resolve this issue.