Thanks for the reply.
I had checked your sales web site:
I've said we don't test with anything else than Windows 7 64 bit these days, not when the KLAS page was written...
That page doesn't even mention Windows 7, because it wasn't out when KLAS was released, but the general rule which is valid for every Windows program is, if a program runs under Vista, you can safely assume it will work with Windows 7 too, the ones that could create potentially have issues are those that runs under XP only.