I have two computers both quad core, one running vista and the other win7. I had problems with the RTL8187L chipset in win7 but now realtek have bought out drivers for win7. My adaptors are 1. Alfa 036h 1000w with a 7db panel antenna. 2. Wifisky 980WG 5800w. 7db panel antenna. both use the realtek RTL8187L chipset which i find is the easiest to work with. I had used to use an edup adaptor with the newer trl3070 chipset but half the time could not get it to work. I havent really experimented with the wifisky yet as i only bought it a few weeks ago, but i did try it out briefly and it certainly has the power ! It was also very cheap at around $20 from China. I am waiting until i can get a really hi db antenna before i play about with it. Fortuneately i live on top of a hill and have no obstruction that would block any signal.
You are better off with the old drivers and not the utility in Win7, I use bootcamp and find that the drivers from 2009 work very well in 64bit.
Pics Wifisky Alfa 036h with 7db panel antenna --- Double Post Merged, 13 Aug 2012 --- Ah i see now about bootcamp. No wonder i had not heard of it if it is to run windows through mac lol