Force Install/Uninstall

[Gil Baron]

I have a program that was installed by Install Shield. It has
disappeared form the Programs list on Add Remove. I tried to reinstall
but I get a message that an Old Version is there and I MUST remove it from Add Remove Programs :-0
YES a catch 22. I can't remove it because it is not there and yet I have to remove it to install a new version.
The program writes told me to search for a particular phrase in the
registry and delete all those keys. What a PAIN. I did it but I still
can't install. Obviously something that Installer checks is still
there but I have to the faintest idea. I cannot even install a newer
version of the program. Is there any way to force this to happen?

 

[Mick Murphy]

Try to reinstall the old Program.
With a lot of programs, once it recognises that it is already there, it
might give you the "repair, install, update, uninstall" options

Failing that, go to the C: drive>program files(click to show hidden
folders)>right-click >Delete.