Kuery mirate este hilo que lo ahi tienes la solucion:
http://cod2.gamersmafia.com/foros/topic/17061
Te pego la solucion sacada de gamersmafia:
22SHeLL
Pongo la respuesta que nos han dado en el foro de punkbusted al problema que teniamos, por si a alguien le pasa.
07/29/2007 07:40:48 – "Wouter Tromp"
Note #2: This kick is caused by a rootkit application running while playing on PunkBuster enabled servers. The name of the file is called oreans32.sys and it is located in C:WINDOWSSystem32Drivers of your computer. Deleting that file and rebooting will allow you to play again. You may need to disable system restore if the file keeps returning.
So, I checked again and sure enough the rootkit magically was back. Now this is what I did to resolve it:
1) Opened a CMD prompt.
2) Typed in "Net Stop Oreans32" (<– without the quotes), hit [Enter]
3) Typed in "SC Delete Oreans32" (<– without the quotes), hit [Enter]
4) Browsed to my "C:WindowsSystem32Drivers" and deleted the file "Oreans32.sys".
5) Rebooted
Parece que funciona, saludos