You dont need to touch the OS, just apache in theory... or maybe they ported ISS to BSD or Linux
Maybe solaris ???
There is proof that they use Windows, because a Hacker did a D0S that was Win2k only and it was because Microsoft didnt install there own security patch. He got in BIGGGGG trouble toooo.
Anyways im about to switch my runlevel to 0 so goodnight!