If u want to do it smoothly get VMWARE software, it will alow u to have 2 or more operating systems instaled, running at the same time, so u press a KEY ur on LINUX, u press twice that key back, and ur back to windows XP, and it doesnt stop services. U can use XP to XP vmware or whatever u want.
In this case u should do XP to XP vmware instalation.
50% of mem+cpu to each operating system, so it doesnt get much "laggy" if u got good CPU/RAM/Board, Graphic card isnt important at all.
If this doesnt satisfied u, iŽll find more solutions, but this is what im using at my home, laptop, and at work, works really nice and doesnt make me stress being "so slow" as the other systems iŽve tryed.
ah..by the way u can change ethernet RJ45 mac adresses on each operating system, so K2 will find that ur running KO from "2 computers" because ur using "2 mac adresses" of the same internet gateway.