Dual monitor over network with Windows Host and Mac client?

Dual monitor over network with Windows Host and Mac client?

I'm looking for something like MaxiVista that lets you extend your monitor to a second computer monitor. However Maxivista is only Windows base. My main computer is Windows 7 and the other computer I'm trying to connect to is a Mac. Note I am not trying to share my keyboard or mouse, I want to use the Mac as a third display.