OK. Have done all that you recommended. Here is a copy of my highjack log file. Thank you for your help. I hope this will get rid of them for good.
Logfile of HijackThis v1.98.2
Scan saved at 5:46:04 PM, on 10/13/2004
Platform: Windows XP SP1 (WinNT 5.01.2600)
MSIE: Unable to get Internet Explorer version!
Running processes:
C:\WINDOWS\System32\smss.exe
C:\WINDOWS\system32\csrss.exe
C:\WINDOWS\system32\winlogon.exe
C:\WINDOWS\system32\services.exe
C:\WINDOWS\system32\lsass.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\WINDOWS\System32\pctspk.exe
C:\PROGRA~1\Grisoft\AVG7\avgcc.exe
C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
C:\documents and settings\vip\local settings\temp\wlqyoq.exe
C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe
C:\Program Files\Second Nature\Snsicon.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\PROGRA~1\Grisoft\AVG7\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVG7\avgupsvc.exe
C:\Program Files\MSN\MSNCoreFiles\msn.exe
C:\Program Files\MSN\MSNIA\msniasvc.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Documents and Settings\VIP\My Documents\My Downloads\hijackthis\HijackThis.exe
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [PCTVOICE] pctspk.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVG7\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [AVG7_EMC] C:\PROGRA~1\Grisoft\AVG7\avgemc.exe
O4 - HKLM\..\Run: [wlqyoq] C:\documents and settings\vip\local settings\temp\wlqyoq.exe
O4 - HKLM\..\Run: [Microsoft Works Update Detection] C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkUFind.exe
O4 - HKLM\..\Run: [Bart Station] C:\Program Files\ISP50\hta\station.sbrt
O4 - HKCU\..\Run: [SpySweeper] "C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe" /0
O4 - Startup: PowerReg Scheduler V3.exe
O4 - Global Startup: Event Reminder.lnk = C:\Program Files\PrintMaster 16\pmremind.exe
O4 - Global Startup: Snsicon.lnk = C:\Program Files\Second Nature\Snsicon.exe
O9 - Extra button: (no name) - {869EE607-5376-486d-8DAC-EDC8E239AD5F} - (no file)
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
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
O16 - DPF: {F58E1CEF-A068-4C15-BA5E-587CAF3EE8C6} (MSN Chat Control 4.5) -
O16 - DPF: {F76DF680-EC17-4272-B1C7-CDB2641FA20B} (KB836528 Object) -
O17 - HKLM\System\CCS\Services\Tcpip\..\{9D7ED94B-A713-40F0-BCEF-48D52A3A3049}: NameServer = 198.6.1.218 198.6.100.218
O20 - AppInit_DLLs: msvsres.dll