It appears that you still have some remnants of McAfee in there as well. Let's give Kaspersky's tool a try.  Please read carefully and follow these steps.  
I have run the following free downloadable or online scans / cleanups: Malwarebytes, Spybot S&D, Ad-Aware, Advanced Systemcare Free, Microsoft Security Essentials, Bitdefender, Panda, ESET, and possibly more that I have forgotten. I have removed more junk from this laptop than I thought was humanly possible, yet I still have redirected searches from Google and constant script error pop ups. The scans no longer find any errors or infected files, so I am down to this option. I have already bought the replacement laptop (as this one is pretty old, but I would love to be able to use Windows Easy Transfer to salvage the data, but obviously I can't risk moving infected files, so I have to get it clean or it's DBAN time, which makes me very, very sad. Thank you in advance for all of your help! KRC Logfile of Trend Micro HijackThis v2.0.4Scan saved at 8:56:27 AM, on 6/3/2011Platform: Windows XP SP3 (WinNT 5.01.2600)MSIE: Internet Explorer v8.00 (8.00.6001.18702)Boot mode: Normal Running processes:C:\WINDOWS\System32\smss.exeC:\WINDOWS\system32\winlogon.exeC:\WINDOWS\system32\services.exeC:\WINDOWS\system32\lsass.exeC:\WINDOWS\system32\svchost.exec:\Program Files\Microsoft Security Client\Antimalware\MsMpEng.exeC:\WINDOWS\System32\svchost.exeC:\WINDOWS\system32\svchost.exeC:\WINDOWS\System32\WLTRYSVC.EXEC:\WINDOWS\System32\bcmwltry.exeC:\WINDOWS\system32\spoolsv.exeC:\Program Files\IObit\Advanced SystemCare 4\ASCService.exeC:\WINDOWS\Explorer.EXEC:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exeC:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exeC:\Program Files\Java\jre6\bin\jqs.exeC:\Program Files\LogMeIn\x86\LMIGuardianSvc.exeC:\Program Files\LogMeIn\x86\RaMaint.exeC:\Program Files\LogMeIn\x86\LogMeIn.exeC:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Binn\sqlservr.exeC:\WINDOWS\system32\nvsvc32.exeC:\Program Files\Microsoft SQL Server\90\Shared\sqlwriter.exeC:\WINDOWS\system32\svchost.exeC:\WINDOWS\system32\SearchIndexer.exeC:\WINDOWS\system32\rundll32.exeC:\WINDOWS\system32\rundll32.exeC:\WINDOWS\system32\WLTRAY.exeC:\WINDOWS\stsystra.exeC:\Program Files\Synaptics\SynTP\SynTPEnh.exeC:\Program Files\LogMeIn\x86\LogMeInSystray.exeC:\Program Files\Microsoft Security Client\msseces.exeC:\WINDOWS\system32\ctfmon.exeC:\Program Files\Trend Micro\HiJackThis\HiJackThis.exeC:\Program Files\LogMeIn\x86\LogMeIn.exeC:\WINDOWS\system32\SearchProtocolHost.exe R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = [URL] - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = [URL] - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = [URL] - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = [URL] - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = [URL] - HKLM\Software\Microsoft\Internet Explorer\Search,Default_Page_URL = www.google.com/ig/dell?hl=en&client=dell-usuk-rel&channel=us&ibd=4070508O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartupO4 - HKLM\..\Run: [nwiz] nwiz.exe /installquietO4 - HKLM\..\Run: [NVHotkey] rundll32.exe nvHotkey.dll,StartO4 - HKLM\..\Run: [Broadcom Wireless Manager UI] C:\WINDOWS\system32\WLTRAY.exeO4 - HKLM\..\Run: [SigmatelSysTrayApp] stsystra.exeO4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exeO4 - HKLM\..\Run: [LogMeIn GUI] "C:\Program Files\LogMeIn\x86\LogMeInSystray.exe"O4 - HKLM\..\Run: [AT&T Communication Manager] "C:\Program Files\AT&T\Communication Manager\ATTCM.exe" -aO4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottimeO4 - HKLM\..\Run: [MSC] "c:\Program Files\Microsoft Security Client\msseces.exe" -hide -runkeyO4 - HKLM\..\RunOnce: [KB2492386] rundll32.exe apphelp.dll,ShimFlushCacheO4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exeO4 - HKUS\S-1-5-21-2311459282-904844021-832172065-1011\..\Run: [ModemOnHold] C:\Program Files\NetWaiting\netWaiting.exe (User 'LogMeInRemoteUser')O4 - HKUS\S-1-5-21-2311459282-904844021-832172065-1011\..\Run: [DellSupport] "C:\Program Files\Dell Support\DSAgnt.exe" /startup (User 'LogMeInRemoteUser')O4 - HKUS\S-1-5-18\..\Run: [DWQueuedReporting] "C:\PROGRA~1\COMMON~1\MICROS~1\DW\dwtrig20.exe" -t (User 'SYSTEM')O4 - HKUS\.DEFAULT\..\Run: [DWQueuedReporting] "C:\PROGRA~1\COMMON~1\MICROS~1\DW\dwtrig20.exe" -t (User 'Default user')O4 - Global Startup: $McRebootA5E6DEAA56$.lnk = ?O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~4\Office12\EXCEL.EXE/3000O9 - Extra button: (no name) - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exeO9 - Extra 'Tools' menuitem: Uninstall BitDefender Online Scanner - {85d1f590-48f4-11d9-9669-0800200c9a66} - C:\WINDOWS\bdoscandel.exeO9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~4\Office12\REFIEBAR.DLLO12 - Plugin for .VSF: C:\Program Files\Internet Explorer\Plugins\np_vsf.dllO16 - DPF: {5D86DDB5-BDF9-441B-9E9E-D4730F4EE499} (BDSCANONLINE Control) - [URL] - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - [URL] - DPF: {7530BFB8-7293-4D34-9923-61A11451AFC5} - [URL] - DPF: {E2883E8F-472F-4FB0-9522-AC9BF37916A7} - [URL] - DPF: {FD0B6769-6490-4A91-AA0A-B5AE0DC75AC9} (Performance Viewer Activex Control) - [URL] - SharedTaskScheduler: Browseui preloader - {438755C2-A8BA-11D1-B96B-00A0C90312E1} - C:\WINDOWS\system32\browseui.dllO22 - SharedTaskScheduler: Component Categories cache daemon - {8C7461EF-2B13-11d2-BE35-3078302C2030} - C:\WINDOWS\system32\browseui.dllO23 - Service: McAfee Application Installer Cleanup (0116691306958981) (0116691306958981mcinstcleanup) - Unknown owner - C:\DOCUME~1\JOHNST~1\LOCALS~1\Temp\011669~1.EXE (file missing)O23 - Service: Advanced SystemCare Service (AdvancedSystemCareService) - IObit - C:\Program Files\IObit\Advanced SystemCare 4\ASCService.exeO23 - Service: Apple Mobile Device - Apple Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\AppleMobileDeviceService.exeO23 - Service: AT&T RcAppSvc (ATTRcAppSvc) - SmithMicro Inc. - C:\Program Files\AT&T\Communication Manager\RcAppSvc.exeO23 - Service: Bluetooth Service (btwdins) - Broadcom Corporation. - C:\Program Files\WIDCOMM\Bluetooth Software\bin\btwdins.exeO23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1050\Intel 32\IDriverT.exeO23 - Service: Java Quick Starter (JavaQuickStarterService) - Sun Microsystems, Inc. - C:\Program Files\Java\jre6\bin\jqs.exeO23 - Service: LMIGuardianSvc - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\LMIGuardianSvc.exeO23 - Service: LogMeIn Maintenance Service (LMIMaint) - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\RaMaint.exeO23 - Service: LogMeIn - LogMeIn, Inc. - C:\Program Files\LogMeIn\x86\LogMeIn.exeO23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\system32\nvsvc32.exeO23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exeO23 - Service: LiveShare P2P Server 9 (RoxLiveShare9) - Unknown owner - C:\Program Files\Common Files\Roxio Shared\9.0\SharedCOM\RoxLiveShare9.exe (file missing)O23 - Service: Dell Wireless WLAN Tray Service (wltrysvc) - Unknown owner - C:\WINDOWS\System32\WLTRYSVC.EXE --End of file - 7184 bytes
Redirected searches and script errors