Thanks for all your help. Please see the log from Hijack This below:-
Logfile of HijackThis v1.99.1
Scan saved at 18:18:06, on 05/04/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\slserv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\UStorSrv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\rundll32.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\msiexec.exe
C:\WINDOWS\System32\ch_utility.exe
C:\WINDOWS\System32\khooker.exe
C:\Program Files\QuickTime\qttask.exe
C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe
C:\windows\mousepad7.exe
C:\Program Files\Windows Defender\MSASCui.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Messenger\msmsgs.exe
C:\PROGRA~1\PANICW~1\POP-UP~1\PSFree.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Outlook Express\msimn.exe
C:\PROGRAM FILES\INTERNET EXPLORER\IEXPLORE.EXE
C:\Program Files\HijackThis\HijackThis.exe
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Search_URL =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar =
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL =
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page =
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant =
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = \blank.htm
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer Provided By Wanadoo
O4 - HKLM\..\Run: [Chrontel TV] C:\WINDOWS\System32\ch_utility.exe
O4 - HKLM\..\Run: [SiS KHooker] C:\WINDOWS\System32\khooker.exe
O4 - HKLM\..\Run: [SiSUSBRG] C:\WINDOWS\sisUSBrg.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Gremlin] C:\WINDOWS\System32\intrenat.exe
O4 - HKLM\..\Run: [service] C:\WINDOWS\services.exe -serv
O4 - HKLM\..\Run: [STOPzilla] C:\Program Files\STOPzilla!\Stopzilla.exe /autorun
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [SpeedTouch USB Diagnostics] "C:\Program Files\Thomson\SpeedTouch USB\Dragdiag.exe" /icon
O4 - HKLM\..\Run: [keyboard] C:\windows\keyboard7.exe
O4 - HKLM\..\Run: [mousepad] C:\windows\mousepad7.exe
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [DELETE ME] worm.exe
O4 - HKCU\..\Run: [PopUpStopperFreeEdition] C:\PROGRA~1\PANICW~1\POP-UP~1\PSFree.exe
O4 - Global Startup: Acrobat Assistant.lnk = C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office10\EXCEL.EXE/3000
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - C:\Program Files\Messenger\msmsgs.exe
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll
O14 - IERESET.INF: START_PAGE_URL=http://www.freeserve.com/
O16 - DPF: {0E5F0222-96B9-11D3-8997-00104BD12D94} (PCPitstop Utility) -
O16 - DPF: {11111111-1111-1111-1111-111111111111} - mhtml:file://C:NXSFT.MHT!
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) -
O17 - HKLM\System\CCS\Services\Tcpip\..\{D08F3825-6D20-4172-B96B-66E2FE19BE55}: NameServer = 195.92.195.95 195.92.195.94
O20 - Winlogon Notify: Controls Folder - C:\WINDOWS\system32\k4pm0e71eh.dll
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - Unknown owner - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe" /service (file missing)
O23 - Service: avast! Web Scanner - Unknown owner - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe" /service (file missing)
O23 - Service: SmartLinkService (SLService) - - C:\WINDOWS\SYSTEM32\slserv.exe
O23 - Service: STOPzilla Local Service - Unknown owner - C:\Program Files\STOPzilla!\szntsvc.exe (file missing)
O23 - Service: UStorage Server Service - OTi - C:\WINDOWS\system32\UStorSrv.exe