Article ID: 275539 - View products that this article applies to.
This article was previously published under Q275539
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When you attempt to open Windows Help or to click the Index tab in Windows Help, you may receive the following error message:
When you close this dialog box, you may receive the following error message:
HH caused an Invalid Page Fault in ITSS.DLL
HH caused an Invalid Page Fault in Unknown
This issue can occur if an Index file for the Help section that you are using is damaged.
To resolve this issue, delete the .chw (Index) file for the Help item. The following steps outline how to delete all Help index files, including the damaged one. The Help index files are rebuilt automatically the next time you open Help and click the Index tab.
NOTE: This process deletes all Help index files because it can be difficult to determine exactly which index file is damaged. These files are rebuilt automatically the next time you click the Index tab in any Help file. It is, however, unlikely that all Help index files are damaged.
For additional information, click the article numbers below to view the articles in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/196067/EN-US/ )Err Msg: HH Caused an Invalid Page Fault in Module Itss.dll
(http://support.microsoft.com/kb/231819/EN-US/ )Err Msg: HH Caused an Invalid Page Fault in Kernel32.dll