Have you tried? As Admin?
Many old programs require "Admin Rights" to install and
I think is same on Win7 and Vista to use PIP and Windows User Account Control (UAC) set to default.
Win Firewall can cause problem too. Check setting for that.
Dr. Ian Malcolm: Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.
The Ogre's Fiero Cave (It's also at the top and bottom of every forum page...)