I have some products in Install Shield 11, and for some reason, on a client, all installshield setups decided not to work.
On uninstall, install, both on control panel and on disk, the user executes the setup until "Preparing the installshield wizard". Then the setup disappears without an error.
I've tried some solutions, like:
- Execute as Administrator
- Renaming C:\Program Files (x86)\Common Files\InstallShield
- Cleaning temp folder.
I've tried to execute InstallShieldEngineUpdate1100.exe, but it also disappears without a trace.
I have no ideas for what is happening

Any thoughts?
Thanks for the help