Hello all guys.. Well this time I got a WiFi Connection from a local ISP, they have simply given me an IP on the basis of mac address of the wifi lan card, the ip they have given is of local lan. Also they have given me username / password. They have configured nothing in browser, so to use wifi I have to first open the brower, then give an ip address, then i wil presented with login screen, there I have to give username /password. Then only I can surf internet, just give it in any browser whether its firefox, IE. etc. and then all internet application works.. No problem untill now.. So the problem which is being faced is ---> That I am unable to share internet to my other computer using NAT (Internet connection sharing / ICS in windows). My problem is that I have to share internet using NAT only (NAT = Network address Translation). I can share it using proxy but its not the solution. Now wht the heck they are using for authentication, mostly on the windows , all application uses IE's internet connection setting and cookies etc. but if I log in using FireFox (which is totally diff. to IE as it is not sharing it IE's setting) then how the hell all other application works (internet applications) ? So guys tell me how I can share internet using ICS / NAT (using any other application) . .. Waiting..