Generic Host Process for Win32 problem

I downloaded a file which might of been compromised. When i clicked on setup.exe my pc became super slow. After that i keep on receiving this "Generic Host for Win32 Services has encountered a problem and needs to close." This is followed my by anti virus displaying : SYMANTEC TAMPER PROTECTION ALERT Target: C:\Program Files\Common Files\Symantec Shared\ccApp.exe Event Info: Write Memory Action Taken: Logged Actor Process: C:\Documents and Settings\miguel bueno\gaiso.exe (PID 2492) Time: Monday, September 13, 2010 5:47:21 AM if i click on: send error report, dont send or debug, explorer stops working. I cant open no files or browse at all. I followed some steps i found online, including installing SuperAntiSpywear, MalawareBytes, and using my AnitVirus. I have deleted all the Virus and spywear that the programs have shown. Yet i still receive this window. Please help, im not sure how to continue. Thank YOU!!

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