Les was talking about a Startup script. Not about a assigned installation.
I think he was talking about something like described here:
http://www.kixtart.org/ubbthreads/showflat.php?Cat=0&Number=137939&an=0&page=0

What I wanted to say was:
I would first install the V8.exe on a workstation and see if I was able to remove it with the v8.msi as suggested by sealeopard. Not directly implement a GPO Installer Package.
I am sorry if you misunderstood me.