This is from Technet:
Some programs replace Windows files with their own files. The Windows
Commctrl.dll, Commdlg.dll, Shell.dll, Lzexpand.dll, Ver.dll, or Mmsystem.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files may have been replaced by files from another program.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 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" (without quotation marks), click
Display, and then double-click Using System File Checker.
If you cannot, try renaming from CMD Prompt
If file attributes prevent copying...
If the
file's Read-Only, Hidden, or System properties are selected, click those check
boxes to clear them.
If the file in the Windows\Sysbckup folder is damaged or is not the
correct version of the file, extract a new version of the file from your
original Windows disks or CD-ROM to the Windows\System folder. To extract a new
copy of the file, you need to perform one of the following 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.
