This only works with creative soundcards and no servers have VoIP on today .
No it dont just work for Creative!
It will work with any sound card or onboard that has "What U Hear" or "Stereo Mix" (or something named similar) in the recording panel.
Also to note I have never seen a fully working 2K\XP machine in my life that don't have one of them sound options.
Professional PC Engineer = Wesker