Problem with reinstalling FS9

[BraBre]

I had installed FS9 on my new computer running Vista Home Prem. Discovered
that most advice was to not install under program files. So silly me, I
uninstalled FS9. Not problems. But now when I try to re-install from CD #1
I get a error message that publisher is unknown (oh please!). I select to
trust the app (setup.exe) then it starts to execute. However, in a few
moments I get an information box saying that there is a problem and setup is
stopped and closed down. Has anybody seen anything like this before? Hope
someone can point me in the right direction (I am having FS9 withdrawals)
Thanks

 

[Andre Da Costa[ActiveWin]]

What is FS9? Flight Simulator 9? Have you tried right clicking the setup
executable and click 'Run as Administrator'? Also, try installing to another
directory other than the Program Files folder.