I have discussed this before with Friedrich but never really found the
solution.

On all XP machines my install works but on SOME XP machines when the
application runs it just sits there in the Task Manager doing nothing. I had
thought this was because of a splash screen so I do not launch that if it is
running on XP. I believe this is far more fundamental than that.

Also when I install to my own XP test machines it works.

It seems to be that SOME XP machines are set up with such tight privacy
settings that something prevents them the application from running.

I use Require Administrator as my execution level for the install.

Being as the install does not fail maybe this is not a SB problem persay but
is there anything within SB that I should be doing specifically to allow a
manifested exe (for Windows7) to run on all XP machines?

I really do not understand this UAC stuff to be honest as there seem so many
levels where you can trapped and think it is something to do with Limited
User accounts in XP.

But basically, I need to know how to check that the exe will run on the
machine it is being installed and if not how to put a message on the install
to say this will not work.

Hope this makes sense.

John Fligg