as I say my iphone no any problem with winxp with win7 build 7000 on my laptop and also with win 7 build 7100 on another laptop I try to install another driver for wireless from internet and it is work for like 3 mintues then dissconected, I try again the same !!!
in windows 7 build 7000 ad hoc .... IPhone can conecct successfully but ... the same problem with my laptop with windows 7 build 7100 ad hoc... IPhone can not connect to it successfully my laptop is VGN-12MN and the wireless device is Atheros AR928X Wireless Network Adapter
my I phone have no any problem to connect to any windows and already no problem with windows 7 build 7000 but now when I create Access point by using windows 7 build 7100 ...the iphone see it and connect to it but when you look to the windows nothing connected .... then the iphone not connected...