Microsoft KB Archive/830859

= You cannot open MSDN library files or MMC Help files =

Article ID: 830859

Article Last Modified on 2/27/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Server

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SYMPTOMS
You may experience any one or both of the following issues:  When you try to start the Microsoft Developer Network (MSDN) Library, you may receive the following error message:

Cannot open C:\Program Files\Microsoft Visual Studio\MSDN98\98VSa\1040\msdnv6a.col

 When you try to open the Help file from a Microsoft Management Console (MMC) snap-in by clicking Help on the toolbar, the Help file does not open, and you do not receive an error message.



CAUSE
These issues may occur if there is a problem with a tag in the Hhcolreg.dat file. When this issue occurs, the HTML Help viewer cannot interpret the Hhcolreg.dat file.

Note The HTML Help viewer is Hhctrl.ocx.



RESOLUTION
To resolve these issues, edit the Hhcolreg.dat file:  Start Notepad. Open the Hhcolreg.dat file. To do so, click Start, click Search, click Advanced search options, and then click to select the Search hidden files and folders check box.

Note The Hhcolreg.dat file is located in the C:\Documents and Settings\All Users\Application Data\Microsoft\HTML Help folder. By default, the Application Data folder is hidden. Locate the following XML tag:

<Locations/>

</li> Replace the <Locations/> XML tag with the following XML tag:

<Locations> </Locations>

</li> Save the file.</li></ol>

<div class="status_section">

STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

Keywords: kbprb KB830859

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