System Link Good for Video Playback on Slave PC ?

Hi,

this is my setup

Main Computer Macbook Pro (OSX Lion) and Cubase 6 with RME FF800
Slave PC With Win XP SP2 32bit (want to buy C6 Elements and already have a RME Digi 9652 (Adat Soundcard)

Simple Question: Could I sync C6 to C6 Elements with VST System Link (over ADAT) in order to play my quicktime movies from the Slave PC. Would this work frame accurate ? -> how about latency of the movie being played a few frames later?

Thanks a lot,
bye,
Lokotus