Inno Setup generated installer does not show “Select Destination Location” page on some systems

Question

I create my application with py2exe and package it into an installer exe using Inno Setup on Windows 7. The installer created this way can then be installed on

Answer 1

I found another parameters that affects it.

CreateAppDir=no

In CreateAppDir page says:

If this is set to no, no directory for the application will be created, the Select Destination Location wizard page will not be displayed, and the {app} directory constant is equivalent to the {win} directory constant. If the uninstall feature is enabled when CreateAppDir is no, the uninstall data files are created in the system's Windows directory.