Unable to connect to e mails and the web

While trying to sort out my other problems about my pc such as auto restarting and games crashing i now have a new problem! i cant get onto the internet nor can i read my e-mails! when i try windows messenger i get the troubleshoot screen and when i repair its stops at the default gateway and thats all i can do as i cant get on the web to find out how to cure the problem! when i try the web i get a grey screen with `web page not found` ive tried google, internet expolere and firefox! but i cant get on the net ive tried to re boot the modem that does nothing to help? ive tried to send my comp a few days prior to the system stopping but that didnt work either? now i have 3 problems on this pc and its not looking good! but need to find out how to get back onto the web etc then i need a realy good security program as i think i have a rustock virus and malware! ive got avg at moment but only the basic free download please help!!!!

Try each of these on a command line (Start->Run->cmd) followed by "Enter" key on each one

ipconfig /release

ipconfig /flushdns

ipconfig /registerdns

ipconfig /renew

netsh winsock reset catalog

netsh int ip reset reset.log

netsh winsock reset

Click to expand...

You may need to restart your computer once complete


Or Download WinsockFix http://www.snapfiles.com/download/dlwinsockxpfix.html
More info here on Winsock2: http://support.microsoft.com/kb/811259

I tried to do the above commands flushdns & registerdns worked, both netsh were not reconised, and ipconfig release and renew both said `failed as no adapter is in the state permissible for this opp`i restarted my comp and just thought i would try but still web search or messenger? My web search comes up with http://g.msn.com/5meen_ms/178 then says browser couldnt find the host server for the address, not sure if my browser setting have changed for some reason?