ncasespy help please!!!

Can someone please help with my problem being win32 ncasespy (trj) C\win\inih.exe. That’s what it said when avast found it but it couldn’t fix it. It has dumped files on my desktop (0021-bd19, bss-ntlsv, cs4po28, silent) and now won’t even let me get on the net so I need a solution that’s manual. I’m using win 98. Now I’m not that good with these things so I need thorough instructions. A thousand thank you’s if you can guide me.

try here?

http://forum.avast.com/index.php?board=4;action=display;threadid=3685

Thanks but I already tried this. The problem is I can’t access the net to download anything. Any other suggestions?