Microsoft KB Archive/217171

= FIX: /Zl Generates Invalid VXD Or Driver Image =

Article ID: 217171

Article Last Modified on 11/18/2003

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APPLIES TO


 * Microsoft Visual C++ 6.0 Enterprise Edition
 * Microsoft Visual C++ 6.0 Professional Edition
 * Microsoft Visual C++ 6.0 Standard Edition

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This article was previously published under Q217171



SYMPTOMS
A Virtual Device Driver (VxD) or driver built with Visual C++ fails to load or run.



CAUSE
The /ZI compiler option (debug info for Edit and Continue) uses the the compiler option /GF (constant string pooling) which places strings in .rdata. It is the presence of .rdata that causes the VxDs to fail. This option is turned on by default when a project is ported from Visual C++ version 5.0 to version 6.0.



RESOLUTION
Remove the /ZI compiler option or use /Zi instead.



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

This bug was corrected in Visual Studio 6.0 Service Pack 3. For more information about Visual Studio service packs, please see the following articles in the Microsoft Knowledge Base:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed



MORE INFORMATION
The Visual C++ 6.0 Service Pack 3 linker generates the following warnings:

LNK4075: ignoring /EDITANDCONTINUE due to /VXD specification

LNK4212: Section "section_name" has an unknown VxD section type; image may not load

Keywords: kbbug kbfix kbcompiler kbvs600sp3fix KB217171

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