Watch videos from PC on nexus 7 tablet
 

I want to be able to stream videos that are stored on my PC onto my Nexus 7 tablet using bsplayer. I am sure this is very simple, but I can't find a tutorial on this anywhere. The videos are files I would usually play on windows media player. How can I get my tablet and PC to communicate on my WiFi network and use the player to stream these videos? As simple an explanation as possible would be appreciated. Thank you very much!

I am running windows vista on my PC.