Just wanted to add my "me too". I also get
Error 1335. The cabinet file 'Object~1.cab' required for this installation is corrupt and cannot be used.
Computer is running XP at stock speed and I'm trying to install from an official DVD. I also have enought free HD space (unless it needs more than 300Gb to install).
I was able to copy the contents from the DVD to my HD just fine and when I ran the setup from the HD I got the exact same error.