I have experimented with the other downloads from the site.

The 64 bit version for both XP and Vista have the same result.
The stage 3 install takes less then half a second, with nothing actually happening.

The 32 bit version for both XP and Vista have a different result.
An installation actually occurs at stage 3.
So far, running 32 bit version of the Profiler has worked just fine for me.