Symptoms
When you run a Setup that was created using the Package and Deployment Wizard (PDW), you receive one of the following error messages:

Cannot start main setup program! (CreateProcess() returned error code 0×000000C1H)

VB6stkit.dll is not a valid Windows NT image

The system could not locate the file ‘<Temp Folder>\Msftqws.pdw\Vb6stkit.dll’. Would you like to browse for the file yourself?

The system could not locate the file ‘<Temp Folder>\Windows\Temp\Msftqws.pdw\St6unst.exe’. Would you like to browse for the file yourself? where <Temp Folder> is the Windows\Temp folder on Windows 95, Windows 98, or Windows Me or the folder specified by the TEMP environment variable on Windows NT.
Resolution
If the symptom occurs on all target computers where you run Setup, the cause of the problem is most likely one of the following: A damaged diskette.A damaged setup file. If the symptom only occurs on some target computers, the cause may be one of the following: Left-over files from a previous installation attempt.A machine-specific issue.