HTML Help Workshop May Cause an Access Violation When Editing Contents File with .hhc Extension

When you are editing an HTML Help contents file with the Microsoft HTML Help Workshop, you may receive an access violation in Hhw.exe. This can occur when you are moving, adding, or deleting items through the graphical interface for editing individual items.

Also, when you are editing large content files, you can receive illegal operations error messages simular to the following:

This is due to a bug in the HTML Help Workshop's memory management code.

For additional information about how to resolve this issue using the hotfix found in the Resolution section of Q304412, click the article number below to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.