@B00tDisk
Well, the injury must be all yours.
It's not about grabbing the desktop, but rather being able to remotely log in as user x, y and z (with different desktops/terminal) simultanously.
Only single user can use the XP machine at a time. Thus I consider it singleuser.
I'm sure there are some sort of hacks for this, but XP remote desktop doesn't allow this. It's one user at a time.