It is usually a last resort (It is easy to remove important things).
http://www.spywareinfo.com/~merijn/downloads.html -- scroll down..
Dowload the .exe file for Hijack this and click on the "Do a System Scan and Save Logefile" button. It should be in the upper left hand corner.
Get it to save a log and you could post it here.. For example this is mine:
Logfile of HijackThis v1.99.1
Scan saved at 9:13:59 PM, on 12/18/2005
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)
Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\spoolsv.exe
C:\WINNT\System32\svchost.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\BitComet\BitComet.exe
C:\Program Files\1by1\1by1.exe
C:\Documents and Settings\Administrator\Desktop\HijackThis.exe
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O4 - HKLM\..\Run:
mobsync.exe /logon
O4 - HKLM\..\Run: "C:\Program Files\Microsoft AntiSpyware\gcasServ.exe"
O4 - HKLM\..\Run: "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKCU\..\Run: "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O16 - DPF: Yahoo! Cribbage - http://download.games.yahoo.com/games/clients/y/it1_x.cab
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage) - http://go.microsoft.com/fwlink/?linkid=36467&clcid=0x409
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPodService - Apple Computer, Inc. - C:\Program Files\iPod\bin\iPodService.exe
I might be able to tell you what to delete (and how).. But your best bet is to go to one of the forums listed before you download and ask there..
Honestly, I would suggest burning some CD's of your data and plan on Re-installing Windows. All Operating Systems need to get re-installed at some time. You might as well get your data safe. Your hard drive could die in 30 minutes. Might as well have a back-up.