I'm assuming this is a virus, though my virus checker can't find it.
I downloaded the latest VMware Workstation 7 installer. I'm running Windows 7 64bit.
I go to install it, and the installer window is a Disney website.
Upon further investigation, what's happening is that the VMware installer extracts/writes a bunch of files to a temp directory. One of those files is an index.htm file. When I open it, sure enough it's the Disney file.
I used Sysinternals Process Monitor to look for anything fishy, but the only thing I see touching that index.htm file is the VMware installer and explorer.exe