Possible Duplicate:
Can I use my laptop as a second monitor for my desk computer?
What is a free/open source tool to allow me to control another computer or use it as a second monitor?
What software could I use in order to use a laptop as a 2nd screen? the laptop would be connected to the network over wifi.
Maxivista : not free.
ZoneScreen : only clone your display do not allow to expand.
ThighVNC : same thing.
I'm using windows 7 64bits.
Thanks.