No Ports - Cannot use Internet

Some arrogant idiot got through my defences and now I can't get on the Internet completely. I only have 5 ports open: UDP-138,137,445 and TCP-139,445. My Windows Firewall is disabled and I have no others. (No, there are no traces of uninstalled firewalls running) My DNS sevice is not working. I can ping certain sites by IP number, but not all.

Neither AVG nor AdAware report any worms or trojans. I can't see any running processes that haven't alway been there. There has been no change in my TCPIP settings. The event logs show nothing weird. There is no strange proxy.

My question is: How do I reenable the ports? I don't know how they are being blocked. Would it be in the registry? Please don't tell me to unblock them in the Windows Firewall. They are not being blocked there.

WinsowsXP Corporate 2600 - SP2 with all updates
1 Gig Compaq Athlon
ATI 9250 Radeon with 256 RAM

Thanks for any help you can give.

Ed

 

Thanks, Pete, but I fixed it.

I discovered that Winsock itself was damaged. I used WinsockFixWinALL.exe and all is well. I had stopped the adware from being installed, but not before something damaged my Winsock.

Hope this helps someone else.