Win32::GuiTest looks promising. I won't be able to test it until tomorrow, at the earliest. Win32::ActAcc looks (initially, at least) like it requires the driven program to be compiled using the Active Accessibility libraries, which I can't guarantee for this application -- and I am fairly confident it isn't.

I can't find Win32::Setupsup, either on CPAN or at Jenda.Krynicky.cz Can anyone give a better pointer?