I have a laptop that I am using to make a cloning image from and one program I am trying to install will not start the install routine. The error message says: "This is not a valid Windows installer package" I tried the install disk in another machine and it installs fine. Other software will load on the problem computer jsut fine. Only this one program won't start the install routine. In "Add Remove Programs" the Windows installer 3.1 is there in the list but no option to uninstall it. I downloaded the 3.1 Windows Installer from Microsoft and installed it on top of what was already on the computer, but the same error occurs. anyone have any ideas of what to do? Thank you in advance..