Well, one obvious reason could be to dualbox, but that's actually not my case.
In my case i have a server with 2008 core server and need to run L2 on a virtualized box (all OS's on a 2008 Hyper-V Core server are virtual servers). On the other hand I'm also trying to run L2 with vmware with XP from a linux box.
I've seen it on a video that it is possible and I'm just curious on how it can be done.