Anyone can tell? is it avalable to control on/off projector using vvvv? currently my pc is connected to projector, how to control on/off through vvvv?

hi fendi, a slide projector ?
if yes it should be in rs232

most beamers are also controllable by rs232, unfortunately every beamer has a different protocol for that. ask tech support of your projectors remote control specs.

i did a complete remote control patch for kindermann kxd 2700 and for sanyo xt35