Paris,
I should start with reinstalling TCP/IP. You can find a clear instruction, I hope, in http://www.ncsu.edu/resnet/pages/setup/winxp.php
There might be other problems after spyware removal, but this is a good first step, I think.
Kees
I have deleted a TCP/IP exe. in C:\Windows\Systems32 when I got an alert of IRC trojan.
Finally I have scanned and cleaned the system. Ever since my two computers cannot share files. When I use the command ping /all, the NetBIOS TCP/IP is disabled. I try to restart the service and I get Error 1068, the service cannot be started. I think it is because that I have deleted the above program. My question is how can I install this particular service.
I am using WinXP home edition and have got the installation CD.

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