Malware Problem - "Windows Explorer Has Encountered a Problem and Needs to Close"!

I am getting the subject error message frequently when doing basic file and folder exploring in Windows XP Professional.  I've been advised to have HiJackThis scan my system and post the results online.  I am hoping that some kind-hearted pro will examine it and recommend what action I should take to remove the problem malware.   The following is the HiJackThis log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 3:19:18 PM, on 2/28/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal

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:\WINDOWS\System32\svchost.exe
C:\Program Files\Common Files\STOPzilla!\SZServer.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\LEXBCES.EXE
C:\WINDOWS\system32\LEXPPS.EXE
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\BCMSMMSG.exe
C:\WINDOWS\system32\dla\tfswctrl.exe
C:\Program Files\STOPzilla!\stopzilla.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\WrtMon.exe
C:\WINDOWS\system32\spool\drivers\w32x86\3\WrtProc.exe
C:\Program Files\ErrorFix\ErrorFix.exe
C:\PROGRA~1\COMMON~1\AOL\ACS\acsd.exe
C:\Program Files\MicroCalendar\MicroCalendar.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\Program Files\Bonjour\mDNSResponder.exe
C:\WINDOWS\System32\CTsvcCDA.exe
C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
C:\WINDOWS\system32\nvsvc32.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\wanmpsvc.exe
C:\WINDOWS\System32\MsPMSPSv.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe
C:\Program Files\Internet Explorer\iexplore.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.dell4me.com/myway
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.dell4me.com/myway
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch =
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyOverride = 127.0.0.1;*.local
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName =
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: RealPlayer Download and Record Plugin for Internet Explorer - {3049C3E9-B461-4BC5-8870-4C09146192CA} - C:\Program Files\Real\RealPlayer\rpbrowserrecordplugin.dll
O2 - BHO: CitiUSBrowserHelper Class - {387EDF53-1CF2-4523-BC2F-13462651BE8C} - C:\WINDOWS\System32\BhoCitUS.dll
O2 - BHO: Verizon Broadband Toolbar - {4E7BD74F-2B8D-469E-8CB0-AB60BB9AAE22} - C:\PROGRA~1\VOL_TO~1\VOL_TO~1.DLL
O2 - BHO: (no name) - {549B5CA7-4A86-11D7-A4DF-000874180BB3} - (no file)
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\system32\dla\tfswshx.dll
O2 - BHO: Canon Easy Web Print Helper - {68F9551E-0411-48E4-9AAF-4BC42A6A46BE} - C:\Program Files\Canon\Easy-WebPrint\EWPBrowseLoader.dll
O2 - BHO: (no name) - {724d43a9-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar1.dll
O2 - BHO: Google Toolbar Notifier BHO - {AF69DE43-7D58-4638-B6FA-CE66B5AD205D} - C:\Program Files\Google\GoogleToolbarNotifier\4.1.805.4472\swg.dll
O2 - BHO: (no name) - {C2614E72-F4E8-816A-E06C-FD7AE5B05BC4} - (no file)
O2 - BHO: STOPzilla Browser Helper Object - {E3215F20-3212-11D6-9F8B-00D0B743919D} - C:\Program Files\STOPzilla!\SZIEBHO.dll
O2 - BHO: (no name) - {FDD3B846-8D59-4ffb-8758-209B6AD74ACC} - (no file)
O3 - Toolbar: (no name) - {CA0B9B71-C2AF-11D3-B376-0800460222F0} - (no file)
O3 - Toolbar: (no name) - {DAC81192-5D93-638E-F33B-1F04DE487106} - (no file)
O3 - Toolbar: &RoboForm - {724d43a0-0d85-11d4-9908-00400523e39a} - C:\Program Files\Siber Systems\AI RoboForm\roboform.dll
O3 - Toolbar: Easy-WebPrint - {327C2873-E90D-4c37-AA9D-10AC9BABA46C} - C:\Program Files\Canon\Easy-WebPrint\Toolband.dll
O3 - Toolbar: Verizon Broadband Toolbar - {4E7BD74F-2B8D-469E-8CB0-AB60BB9AAE22} - C:\PROGRA~1\VOL_TO~1\VOL_TO~1.DLL
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar1.dll
O4 - HKLM\..\Run: [BCMSMMSG] BCMSMMSG.exe
O4 - HKLM\..\Run: [dla] C:\WINDOWS\system32\dla\tfswctrl.exe
O4 - HKLM\..\Run: [UpdReg] C:\WINDOWS\UpdReg.EXE
O4 - HKLM\..\Run: [PrinTray] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\printray.exe
O4 - HKLM\..\Run: [STOPzilla] C:\Program Files\STOPzilla!\stopzilla.exe /autostart
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [WrtMon.exe] C:\WINDOWS\system32\spool\drivers\w32x86\3\WrtMon.exe
O4 - HKCU\..\Run: [ErrorFix] C:\Program Files\ErrorFix\ErrorFix.exe -boot
O4 - Global Startup: MicroCalendar.lnk = C:\Program Files\MicroCalendar\MicroCalendar.exe
O8 - Extra context menu item: Customize Menu - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComCustomizeIEMenu.html
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Easy-WebPrint Add To Print List - res://C:\Program Files\Canon\Easy-WebPrint\Toolband.dll/RC_AddToList.html
O8 - Extra context menu item: Easy-WebPrint High Speed Print - res://C:\Program Files\Canon\Easy-WebPrint\Toolband.dll/RC_HSPrint.html
O8 - Extra context menu item: Easy-WebPrint Preview - res://C:\Program Files\Canon\Easy-WebPrint\Toolband.dll/RC_Preview.html
O8 - Extra context menu item: Easy-WebPrint Print - res://C:\Program Files\Canon\Easy-WebPrint\Toolband.dll/RC_Print.html
O8 - Extra context menu item: Fill Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O8 - Extra context menu item: RoboForm Toolbar - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O8 - Extra context menu item: Save Forms - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\WINDOWS\System32\msjava.dll
O9 - Extra button: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O9 - Extra 'Tools' menuitem: Fill Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F46} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComFillForms.html
O9 - Extra button: Save - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O9 - Extra 'Tools' menuitem: Save Forms - {320AF880-6646-11D3-ABEE-C5DBF3571F49} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComSavePass.html
O9 - Extra button: Citi - {4C730913-3961-439b-83D5-F4E445520422} - C:\Program Files\Citi Virtual Account Numbers\CitiVAN.exe
O9 - Extra button: RoboForm - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O9 - Extra 'Tools' menuitem: RoboForm Toolbar - {724d43aa-0d85-11d4-9908-00400523e39a} - file://C:\Program Files\Siber Systems\AI RoboForm\RoboFormComShowToolbar.html
O9 - Extra button: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\PartyPoker.exe
O9 - Extra 'Tools' menuitem: PartyPoker.com - {B7FE5D70-9AA2-40F1-9C6B-12A255F085E1} - C:\Program Files\PartyPoker\PartyPoker.exe
O9 - Extra button: Real.com - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - C:\WINDOWS\System32\Shdocvw.dll
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
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
O15 - Trusted Zone: http://*.turbotax.com
O15 - Trusted Zone: http://awbeta.net-nucleus.com (HKLM)
O16 - DPF: {26098EA2-C95D-48EA-89B4-63C5A63BD42F} - http://www.pacimedia.com/install/pcs_0031.exe
O16 - DPF: {963BE66B-121D-4E6C-BF9F-1A774D9A2E41} - http://moneycentral.msn.com/cabs/pmupdate2.exe
O16 - DPF: {A90A5822-F108-45AD-8482-9BC8B12DD539} (Crucial cpcScan) - http://www.crucial.com/controls/cpcScanner.cab
O16 - DPF: {F919FBD3-A96B-4679-AF26-F551439BB5FD} - http://winfixer.com/pages/scanner/WFXScan.cab
O23 - Service: AOL Connectivity Service (AOL ACS) - America Online, Inc. - C:\PROGRA~1\COMMON~1\AOL\ACS\acsd.exe
O23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: Bonjour Service - Apple Inc. - C:\Program Files\Bonjour\mDNSResponder.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\System32\CTsvcCDA.exe
O23 - Service: Google Updater Service (gusvc) - Google - C:\Program Files\Google\Common\Google Updater\GoogleUpdaterService.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: LexBce Server (LexBceS) - Lexmark International, Inc. - C:\WINDOWS\system32\LEXBCES.EXE
O23 - Service: Macromedia Licensing Service - Macromedia - C:\Program Files\Common Files\Macromedia Shared\Service\Macromedia Licensing.exe
O23 - Service: Intel NCS NetService (NetSvc) - Intel(R) Corporation - C:\Program Files\Intel\NCS\Sync\NetSvc.exe
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exe
O23 - Service: STOPzilla Service (szserver) - Unknown owner - C:\Program Files\Common Files\STOPzilla!\SZServer.exe
O23 - Service: WAN Miniport (ATW) Service (WANMiniportService) - America Online, Inc. - C:\WINDOWS\wanmpsvc.exe

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End of file - 10968 bytes

Thanks in advance to anyone willing to advise me on what action to take.