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Error Message: The Comdlg32.dll File Cannot Start

This article was previously published under Q137273
SYMPTOMS
When you try to start a program in Windows, you may receive one of thefollowing error messages:
  • Error starting program. The Comctl32.dll file cannot start. Check the file to determine the problem.
  • Error starting program. The Comdlg32.dll file cannot start. Check the file to determine the problem.
  • Error starting program. The Shell32.dll file cannot start. Check the file to determine the problem.
  • Error starting program. The Lz32.dll file cannot start. Check the file to determine the problem.
  • Error starting program. The Version.dll file cannot start. Check the file to determine the problem.
  • Error starting program. The Winmm.dll file cannot start. Check the file to determine the problem.
CAUSE
Some programs replace Windows files with their own files. The WindowsCommctrl.dll, Commdlg.dll, Shell.dll, Lzexpand.dll, Ver.dll, orMmsystem.dll files may have been replaced by files from another program.
RESOLUTION
Extract the corresponding file in place of the one listed in the error message you received. In the instructions that follow, replace <name> with the name of the appropriate file. This file will be one of the following files:
  • Commctrl.dll for Comctl32.dll
  • Commdlg.dll for Comdlg32.dll
  • Shell.dll for shell32.dll
  • Lzexpand.dll for Lz32.dll
  • Ver.dll for Version.dll
  • Mmsystem.dll for Winmm.dll
NOTE: If you are using Windows 98, and Windows 98 starts, use the System File Checker tool to replace the damaged file with a new copy of the original file. For information about how to use System File Checker, click Start, click Help, click the Index tab, type "system file checker" (withoutquotation marks), click Display, and then double-click Using SystemFile Checker.

Otherwise, restart your computer to a command prompt, and then copy the <name> filefrom the Windows\Sysbckup folder to the Windows\System folder. Thisreplaces the existing file with the Windows version of the file.



NOTE: The program that replaced the <name> file with another version ofthe file may have set some of the <name> file's attributes. If you arehaving trouble copying the file from the Windows\Sysbckup folder to theWindows\System folder, use Windows Explorer to check the <name> file'sproperties. If the file's Read-Only, Hidden, or System properties areselected, click those check boxes to clear them.

If the <name> file in the Windows\Sysbckup folder is damaged or is not thecorrect version of the file, extract a new version of the file from youroriginal Windows disks or CD-ROM to the Windows\System folder. Toextract a new copy of the <name> file, you need to perform one of thefollowing steps, depending on the file:
  • Extract the Kommctrl.dll file from the Precopy1.cab file to the Windows\System folder, and then rename the Kommctrl.dll file to Commctrl.dll.
  • Extract the Commdlg.new file from the Win95_11.cab file to the Windows\System folder, and then rename the Commdlg.new file to Commdlg.dll.
  • Extract the Shell.new file from the Win95_11.cab file to the Windows\System folder, and then rename the Shell.new file to Shell.dll.
  • Extract the Lzexpand.dll file from the Precopy1.cab file to the Windows\System folder.
  • Extract the Ver.new file from the Win95_17.cab file to the Windows\System folder, and then rename the Ver.new file to Ver.dll.
  • Extract the Mmsystem.dll file from the Win95_13.cab file to the Windows\System folder.
NOTE: The specific cabinet file numbers may vary from version to version.Use the /A switch to search the entire cabinet set of the appropriate type(Precopy or Win95).

For information about using the EXTRACT command to extract a file, see thefollowing article in the Microsoft Knowledge Base:
ARTICLE-ID: 129605
TITLE : How to Extract Original Compressed Windows Files
homemm works 4.0 commdlg32.dll Comctl32 dll Comdlg32 Shell32 Lz32 Version Winmm
Properties

Article ID: 137273 - Last Review: 01/19/2007 13:33:00 - Revision: 2.2

  • Microsoft Windows 98 Second Edition
  • Microsoft Windows 98 Standard Edition
  • Microsoft Windows 95
  • Microsoft Windows 95
  • Microsoft Windows 95
  • kberrmsg kbenv kbprb kbfaq KB137273
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