DOCUMENT:Q235680  11-FEB-2002  [visualc]
TITLE   :FIX: Msdev.exe Crash in Devshl.dll During Command-Line Build
PRODUCT :Microsoft C Compiler
PROD/VER::6.0
OPER/SYS:
KEYWORDS:kbide kbVC600bug kbDevStudio kbFAQ kbDSupport kbGrpDSTools kbvc600faq kbNoUpdate

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The information in this article applies to:

 - Microsoft Visual C++, 32-bit Enterprise Edition, version 6.0 
 - Microsoft Visual C++, 32-bit Professional Edition, version 6.0 
 - Microsoft Visual C++, 32-bit Learning Edition, version 6.0 
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SYMPTOMS
========

While performing a build using the command-line features of Msdev.exe, the
following error appears:

   DDE Server Window : MSDEV.EXE - Application Error : The instruction at
   "0x50084b23" referenced memory at "0x00000014". The memory could not be
   "read".

If Visual C++ is the default debugger, clicking Cancel from the error message
will launch Visual C++ to debug the crash. It will then display a message
stating that the crash took place in Devshl.dll.

CAUSE
=====

The WM_SYSCOLORCHANGE Windows message was sent to a hidden Developer Studio
window during the build. Developer Studio does not properly handle the
WM_SYSCOLORCHANGE message when building from the command-line.

This problem can happen when using Symantec's PCAnywhere to build a project on a
remote computer. When you quit PCAnywhere, the remote computer will receive the
WM_SYSCOLORCHANGE message. Other applications that generate a WM_SYSCOLORCHANGE
message would have the same problem.

RESOLUTION
==========

Avoid changing the system's display settings while an Msdev.exe command-line
build is in progress. This may be difficult if the source of the
WM_SYSCOLORCHANGE message is unknown or if this message is unavoidable.

Consider exporting make files (.mak) for the project and building the project
using the NMake utility. To export a make file, select Export Make File from the
Project menu in Developer Studio. You can also have make files exported
automatically whenever the project changes by doing the following:

1. On the Tools menu, click Options.

2. On the Build tab, select the Export makefile when saving project file check
   box.

This guarantees that the make file is always synchronized with the project file.


STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article.

This problem was corrected in Microsoft Visual C++ .NET.

MORE INFORMATION
================

Steps to Reproduce Behavior
---------------------------

1. Use Msdev.exe command-line parameters to begin a long build from the command
   line.

2. During the build, right-click on the desktop and select Properties.

3. On the Appearance tab, click Save As to save the current color scheme.

4. Select a new color scheme from the Scheme list.

5. Click Apply.

If the build is still in process when the Apply button is clicked, the error
message above will be displayed.

Additional query words:

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Keywords          : kbide kbVC600bug kbDevStudio kbFAQ kbDSupport kbGrpDSTools kbvc600faq kbNoUpdate 
Technology        : kbVCsearch kbAudDeveloper kbVC600 kbVC32bitSearch
Version           : :6.0
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

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