Dual Boxing Mouseclicks on 1 PC[improbable but worth a post]

Hey there,

Just curious about the possibility of dual boxing 1 PC, with x clients [lets say, not WoW anyway, just as a more or less test, so no use of macro's] to share mouse clicks, as far as i have read through these forums, it is not possible unless you have 2 physical boxes. Would the best way to circumvent this issue to run VMWARE or another flavour of virtualisation? The downside to this being the rendering issue, but this isnt wow, my test would be an older game.

Anyway, just kind of getting a confirmation of my theory that 'no you cant share mouse clicks between 2 clients on 1 pc' out of the way before i venture a little further, can anyone enlighten me once and for all on it.