Yes, i know it has nothing to do whatsoever with the operating system. Just in the past ive had problems with older components being incompatible with certain programs, and ive heard lots of dual/quad core compatibility "horror stories" from freinds. Ive never owned one myself, so i just want to make sure. Seeing as how i work for near minimum wage, id like to make sure it has no problems before i throw down the 90$
buying nay upgrade can cause headaches so I understand your concern. You will have 100% no problems at all if your motherboard supports the CPU then you will be fine. If your motherobard doesnt have Windows 7 drivers then dont woryr Vista ones wokr perfectly well in their place.
Windows and every other piece of software is coded to work on a minimum spec CPU / Mobo etc - in the case of Windows 7 your new CPU will work very well - after all dual core chips have more processing power than older single core designs.
More cores are always better... and yoour choice of chip is a good one.