The installation problem can also be caused by the incorrect versions ofthese files residing in the WINDOWS directory. CONTROL.EXE is the only filethat should be found in the WINDOWS directory. The rest of the files(VER.DLL, LZEXPAND.DLL, MAIN.CPL, and COMMDLG.DLL) should be located in theWINDOWS\SYSTEM directory.
To resolve the problem:
Search the WINDOWS directory for the files mentioned above. Any files that appear other than CONTROL.EXE should be renamed or deleted.
Search the WINDOWS\SYSTEM directory for the files listed above. ALL versions of the files should be renamed or deleted. Some setup programs can incorrectly stamp the file's date when it is installed.
Expand the files from the original Windows disks with the following command lines from the MS-DOS command prompt (you may have to adjust drive letters and/or paths to match your system):