Exclamation [Q] Sharing internet connection from laptop

Hey guys,
I was thinking if there is possibility to share internet connection from my laptop to my HD 2 running Android 2.2. I remember my HD2 when connected to ActiveSync through USB it used laptop's internet.

I also tried to set up an ad-hoc network, HD2 sees it but when I try to connect it says "Disconnected", connecting to other wifi networks is no problem.

My laptop is running Vista64

Any ideas? Thanks for your help, mates!