not a valid win32 app

[deedubs]

Can someone help
When I copy cd games they work ok on my machine but when I try to install them on any other machine as soon as I click on the install file it comes up "not a valid win32 application" Also if I browse the disc on other machines all the files are there but when you open them there doesn't appear to be anything in them. I am absolutely stumped. Any good brains out there.