any thoughts as to whether the registry might be borked?

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 00:40:40, on 29/12/2008
Platform: Windows XP SP3 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16762)
Boot mode: Normal

Running processes:
D:\WINDOWS\WINDOWS\System32\smss.exe
D:\WINDOWS\WINDOWS\system32\winlogon.exe
D:\WINDOWS\WINDOWS\system32\services.exe
D:\WINDOWS\WINDOWS\system32\lsass.exe
D:\WINDOWS\WINDOWS\system32\svchost.exe
D:\WINDOWS\WINDOWS\System32\svchost.exe
D:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
D:\WINDOWS\WINDOWS\system32\spoolsv.exe
D:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
D:\Program Files\Java\jre6\bin\jqs.exe
D:\WINDOWS\WINDOWS\Explorer.EXE
D:\Program Files\Kontiki\KService.exe
D:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
D:\WINDOWS\WINDOWS\System32\svchost.exe
D:\WINDOWS\WINDOWS\System32\svchost.exe
D:\WINDOWS\WINDOWS\System32\svchost.exe
D:\PROGRA~1\AVG\AVG8\avgrsx.exe
D:\WINDOWS\WINDOWS\system32\LVCOMSX.EXE
D:\Program Files\Canon\CAL\CALMAIN.exe
D:\Program Files\Java\jre6\bin\jusched.exe
D:\Program Files\btbb_wcm\McciTrayApp.exe
D:\PROGRA~1\AVG\AVG8\avgtray.exe
D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
D:\WINDOWS\WINDOWS\system32\ctfmon.exe
D:\Program Files\Trend Micro\HijackThis\HijackThis.exe
D:\WINDOWS\WINDOWS\system32\DrvMon.exe
D:\Program Files\Microsoft ActiveSync\wcescomm.exe
D:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
D:\PROGRA~1\MICROS~3\rapimgr.exe
D:\Program Files\Windows Media Player\WMPNSCFG.exe
D:\WINDOWS\WINDOWS\system32\ZoneLabs\vsmon.exe
D:\WINDOWS\WINDOWS\System32\svchost.exe
D:\Program Files\Mozilla Firefox\firefox.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://www.mybt.bt.com/dana-na/auth...lt/welcome.cgi
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MSN.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Live Search
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = Yahoo! SearchBar Home Page
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Internet Explorer provided by BT Openworld
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Int ernet Settings,ProxyOverride = 127.0.0.1
O2 - BHO: FlashFetcher - {16E8A050-74CE-43D5-8DC0-BADD7347B2DD} - D:\Program Files\GeoVid\FlashFetcher\FlashFetcher.dll
O2 - BHO: WormRadar.com IESiteBlocker.NavFilter - {3CA2F312-6F6E-4B53-A66E-4E65E497C8C0} - D:\Program Files\AVG\AVG8\avgssie.dll
O2 - BHO: Spybot-S&D IE Protection - {53707962-6F74-2D53-2644-206D7942484F} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: Yahoo! IE Services Button - {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897} - D:\PROGRA~1\Yahoo!\Common\yiesrvc.dll
O2 - BHO: Click-to-Call BHO - {5C255C8A-E604-49b4-9D64-90988571CECB} - D:\Program Files\Windows Live\Messenger\wlchtc.dll
O2 - BHO: Search Helper - {6EBF7485-159F-4bff-A14F-B9E3AAC4465B} - D:\Program Files\Microsoft\Search Enhancement Pack\Search Helper\SearchHelper.dll
O2 - BHO: Java(tm) Plug-In SSV Helper - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - D:\Program Files\Java\jre6\bin\ssv.dll
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - D:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: Windows Live Toolbar Beta - {E15A8DC0-8516-42A1-81EA-DC94EC1ACF10} - D:\Program Files\Windows Live\Toolbar\wltcore.dll
O3 - Toolbar: &Windows Live Toolbar Beta - {21FA44EF-376D-4D53-9B0F-8A89D3229068} - D:\Program Files\Windows Live\Toolbar\wltcore.dll
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [LVCOMSX] D:\WINDOWS\WINDOWS\system32\LVCOMSX.EXE
O4 - HKLM\..\Run: [SunJavaUpdateSched] "D:\Program Files\Java\jre6\bin\jusched.exe"
O4 - HKLM\..\Run: [btbb_wcm_McciTrayApp] D:\Program Files\btbb_wcm\McciTrayApp.exe
O4 - HKLM\..\Run: [btbb_McciTrayApp] D:\Program Files\BT Broadband Desktop Help\bin\BTHelpNotifier.exe
O4 - HKLM\..\Run: [AVG8_TRAY] D:\PROGRA~1\AVG\AVG8\avgtray.exe
O4 - HKLM\..\Run: [ZoneAlarm Client] "D:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "D:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKCU\..\Run: [ctfmon.exe] D:\WINDOWS\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [DrvMon.exe] D:\WINDOWS\WINDOWS\system32\DrvMon.exe
O4 - HKCU\..\Run: [H/PC Connection Agent] "D:\Program Files\Microsoft ActiveSync\wcescomm.exe"
O4 - HKCU\..\Run: [Yahoo! Pager] "D:\Program Files\Yahoo!\Messenger\YahooMessenger.exe" -quiet
O4 - HKCU\..\Run: [SpybotSD TeaTimer] D:\Program Files\Spybot - Search & Destroy\TeaTimer.exe
O4 - HKCU\..\Run: [WMPNSCFG] D:\Program Files\Windows Media Player\WMPNSCFG.exe
O4 - HKUS\S-1-5-19\..\Run: [CTFMON.EXE] D:\WINDOWS\WINDOWS\System32\CTFMON.EXE (User 'LOCAL SERVICE')
O4 - HKUS\S-1-5-20\..\Run: [CTFMON.EXE] D:\WINDOWS\WINDOWS\System32\CTFMON.EXE (User 'NETWORK SERVICE')
O4 - HKUS\S-1-5-18\..\Run: [CTFMON.EXE] D:\WINDOWS\WINDOWS\System32\CTFMON.EXE (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [CTFMON.EXE] D:\WINDOWS\WINDOWS\System32\CTFMON.EXE (User 'Default user')
O8 - Extra context menu item: E&xport to Microsoft Excel - res://D:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: FlashFetcher - {07174FC7-B4C1-4643-9C03-B4D2148EB057} - D:\Program Files\GeoVid\FlashFetcher\FlashFetcher.dll
O9 - Extra 'Tools' menuitem: FlashFetcher - {07174FC7-B4C1-4643-9C03-B4D2148EB057} - D:\Program Files\GeoVid\FlashFetcher\FlashFetcher.dll
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - D:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - D:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - D:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: BT Yahoo! Services - {5BAB4B5B-68BC-4B02-94D6-2FC0DE4A7897} - D:\PROGRA~1\Yahoo!\Common\yiesrvc.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra 'Tools' menuitem: Spybot - Search & Destroy Configuration - {DFB852A3-47F8-48C4-A200-58CAB36FD2A2} - D:\PROGRA~1\SPYBOT~1\SDHelper.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - D:\WINDOWS\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - D:\WINDOWS\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra button: Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra 'Tools' menuitem: Windows Messenger - {FB5F1910-F110-11d2-BB9E-00C04F795683} - D:\Program Files\Messenger\msmsgs.exe
O9 - Extra button: BT - {57DBBAA2-2AC8-485E-B775-FB34F6B8E5B9} - BT: broadband, TV, phone, home & business networked IT services (file missing) (HKCU)
O9 - Extra button: Homepage - {95A91570-02DF-4049-910C-D705D5F762E2} - BT: Broadband Packages|Internet Providers|Broadband Information (file missing) (HKCU)
O9 - Extra button: Help - {ACD494A7-97A4-4AEA-8512-58F90D2B1FBF} - Welcome to BT Internet (file missing) (HKCU)
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsu...?1140629525255
O16 - DPF: {7FC1B346-83E6-4774-8D20-1A6B09B0E737} (Windows Live Photo Upload Control) - http://cid-68db91baeb499f5c.spaces.l...d/MsnPUpld.cab
O18 - Protocol: linkscanner - {F274614C-63F8-47D5-A4D1-FBDDE494F8D1} - D:\Program Files\AVG\AVG8\avgpp.dll
O20 - AppInit_DLLs: avgrsstx.dll
O23 - Service: Lavasoft Ad-Aware Service (aawservice) - Lavasoft - D:\Program Files\Lavasoft\Ad-Aware\aawservice.exe
O23 - Service: AVG Free8 WatchDog (avg8wd) - AVG Technologies CZ, s.r.o. - D:\PROGRA~1\AVG\AVG8\avgwdsvc.exe
O23 - Service: Canon Camera Access Library 8 (CCALib8) - Canon Inc. - D:\Program Files\Canon\CAL\CALMAIN.exe
O23 - Service: Google Updater Service (gusvc) - Google - D:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - D:\Program Files\Java\jre6\bin\jqs.exe
O23 - Service: KService - Kontiki Inc. - D:\Program Files\Kontiki\KService.exe
O23 - Service: Logitech Process Monitor (LVPrcSrv) - Logitech Inc. - d:\program files\common files\logitech\lvmvfm\LVPrcSrv.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Check Point Software Technologies LTD - D:\WINDOWS\WINDOWS\system32\ZoneLabs\vsmon.exe
O23 - Service: YPCService - Yahoo! Inc. - D:\WINDOWS\WINDOWS\system32\YPCSER~1.EXE

--
End of file - 9047 bytes

There is nothing in your HJT log that is of concern except, potentially, the non-standard location of your system files:

D:\WINDOWS\WINDOWS\


Did you recently reinstall XP or has it always been installed at the above location?


If you have been 'fiddling' with your registry and made a mistake then that would not be expected to be apparent. If you have such concerns, please consider doing the following:

System Restore for Windows XP

Your best option may be to try a ‘system restore’ point (if available) to a date before any known problems or before you started performing any recent fixes:

Click on Start>All Programs>Accessories>System Tools>System Restore.

Check Restore my computer to an earlier date> Click Next.

Choose the date before you performed any recent fixes and click Next and Next again.

REBOOT.


NOTE: If you use System Restore and don't like the new system state, you can undo the process and restore the machine to the system state it had before you ran System Restore. Alternatively, you can run System Restore to change the system state to a different restore point.