Like renethx said, it is not optimal It has been around forever and was really made for watching TV on a secondary display in the same room while you control it and do other stuff/work on the primary display. I used it with win 98, win 2k and still use it on my main PC with XP. So far I have not drunk the Vista/Win7 koolaid because my software of choice BTV and/or Sage works great with XP and there is none of that DRM crap and "hoop jumping" to get an extender or client to play stuff that MS puts in place with WMC (not bashing WMC users, itis just my opinion and reason for not using WMC). I am aware that it only works in overlay and that Vista/Win7 handle overlay differently than XP. I'm not sure that it will even work with WMC.
New wealth is created in 2 ways:
You dig it from the ground (mining and oil)
Or you grow it (fishing, farming and forestry).
Everything else is just processing what you dug up or grew.