BUG: HTMLHelp() Opens the Wrong Help File

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View products that this article applies to.

This article was previously published under Q267962

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SYMPTOMS

When you call the HTMLHelp function to open a specific Help file, a different Help file is displayed. For example, if you call HTMLHelp to open a Help file named HelpMe.chm, when you call HTMLHelp to open a Help file named Help.chm (while HelpMe.chm is still open), HelpMe.chm is displayed, and no error occurs.

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CAUSE

This problem occurs when the name of Help file is derived from another Help file that is already open.

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RESOLUTION

To work around this problem, name the application's Help files so that any combination of characters prepended to a Help file name do not collide with another Help file name.

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STATUS

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

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MORE INFORMATION

Using HelpMe.chm as an example, you encounter the same problem when you attempt to open any of the following files while HelpMe.chm is open:

Elpme.chm
Lpme.chm
Pme.chm
Me.chm
E.chm

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APPLIES TO

Microsoft HTML Help 1.2
Microsoft HTML Help 1.21
Microsoft HTML Help 1.22
Microsoft HTML Help 1.3

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kbapi kbbug kbpending KB267962

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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