I am getting the following messages on the taskbar, as well as other security alert popups, ads, and a "protection bar" in internet explorer that I cannot remove. I have used XoftSpySe to remove other problems but cannot get rid of these, I have also downloaded and scanned with HijackThis and I have posted the log below the error message:

"Your computer is infected!"

Critical System Error!
System detected virus activities. They may cause critical system failure. Please, use antimalware software to clean and protect your system from parasite programs. Click here to get all available software."


Here is the HijackThis log:

Logfile of HijackThis v1.99.1
Scan saved at 7:59:03 PM, on 9/5/2006
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Unable to get Internet Explorer version!

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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Windows Defender\MsMpEng.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\system32\ctfmon.exe
C:\WINDOWS\system32\carpserv.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\Program Files\HPQ\One-Touch\OneTouch.EXE
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe
C:\WINDOWS\System32\ezSP_Px.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I2L1.EXE
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I2G1.EXE
C:\Program Files\Java\jre1.5.0_01\bin\jusched.exe
C:\Program Files\Google\Gmail Notifier\gnotify.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\PROGRA~1\NORTON~1\QDCSFS.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIAFA.EXE
C:\Program Files\Windows Defender\MSASCui.exe
C:\Program Files\XoftSpySE\xoftspy.exe
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
C:\Program Files\3M\PostSN2Lite\Psn2Lite.exe
C:\Program Files\Quicken\bagent.exe
C:\Program Files\WinZip\WZQKPICK.EXE
C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkCalRem.exe
C:\PROGRA~1\3M\POSTSN~1\PSNGive.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\DefWatch.exe
C:\WINDOWS\system32\HPConfig.exe
C:\Program Files\HPQ\Notebook Utilities\HPWirelessMgr.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\Rtvscan.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\wscntfy.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\HijackThis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://channels.aimtoday.com/search/aimtoolbar.jsp
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://medley.isc-seo.upenn.edu/penn_portal/portal.php
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = https://medley.isc-seo.upenn.edu/penn_portal/portal.php
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://medley.isc-seo.upenn.edu/penn_portal/view.php
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page =
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Acrobat\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {202a961f-23ae-42b1-9505-ffe3c818d717} - C:\Program Files\Media-Codec\isaddon.dll (file missing)
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\PROGRA~1\SPYBOT~1\SDHelper.dll
O2 - BHO: ST - {9394EDE7-C8B5-483E-8773-474BF36AF6E4} - C:\Program Files\MSN Apps\ST\01.03.0000.1005\en-xu\stmain.dll
O2 - BHO: MSNToolBandBHO - {BDBD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\01.02.3000.1001\en-us\msntb.dll
O3 - Toolbar: MSN - {BDAD1DAD-C946-4A17-ADC1-64B5B4FF55D0} - C:\Program Files\MSN Apps\MSN Toolbar\01.02.3000.1001\en-us\msntb.dll
O3 - Toolbar: Protection Bar - {fe2d25c1-c1db-4b5e-9390-af1cb5302f32} - C:\Program Files\Media-Codec\iesplugin.dll (file missing)
O4 - HKLM\..\Run: [CARPService] carpserv.exe
O4 - HKLM\..\Run: [Cpqset] C:\Program Files\HPQ\Default Settings\cpqset.exe
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [PreloadApp] c:\hp\drivers\printers\photosmart\hphprld.exe c:\hp\drivers\printers\photosmart\setup.exe -d
O4 - HKLM\..\Run: [srmclean] C:\Cpqs\Scom\srmclean.exe
O4 - HKLM\..\Run: [Display Settings] C:\Program Files\HPQ\Notebook Utilities\hptasks.exe /s
O4 - HKLM\..\Run: [QT4HPOT] C:\Program Files\HPQ\One-Touch\OneTouch.EXE
O4 - HKLM\..\Run: [SynTPLpr] C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [AdaptecDirectCD] "C:\Program Files\Roxio\Easy CD Creator 5\DirectCD\DirectCD.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [ezShieldProtector for Px] C:\WINDOWS\System32\ezSP_Px.exe
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [EPSON Stylus CX6400] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I2L1.EXE /P19 "EPSON Stylus CX6400" /O6 "USB001" /M "Stylus CX6400"
O4 - HKLM\..\Run: [EPSON Stylus CX5400] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_S4I2G1.EXE /P19 "EPSON Stylus CX5400" /O6 "USB002" /M "Stylus CX5400"
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_01\bin\jusched.exe
O4 - HKLM\..\Run: [{0228e555-4f9c-4e35-a3ec-b109a192b4c2}] C:\Program Files\Google\Gmail Notifier\gnotify.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [QD FastAndSafe] C:\PROGRA~1\NORTON~1\QDCSFS.exe /startup /scheduler
O4 - HKLM\..\Run: [EPSON Stylus CX7800 Series] C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\E_FATIAFA.EXE /P26 "EPSON Stylus CX7800 Series" /O6 "USB003" /M "Stylus CX7800"
O4 - HKLM\..\Run: [Windows Defender] "C:\Program Files\Windows Defender\MSASCui.exe" -hide
O4 - HKLM\..\Run: [XoftSpySE] C:\Program Files\XoftSpySE\xoftspy.exe -s
O4 - HKCU\..\Run: [MoneyAgent] "c:\Program Files\Microsoft Money\System\mnyexpr.exe"
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Startup: wkcalrem.LNK = C:\Program Files\Common Files\Microsoft Shared\Works Shared\WkCalRem.exe
O4 - Global Startup: Acrobat Assistant.lnk = C:\Program Files\Adobe\Acrobat 5.0\Distillr\AcroTray.exe
O4 - Global Startup: Billminder.lnk = C:\Program Files\Quicken\billmind.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O4 - Global Startup: Post-it® Software Notes Lite.lnk = C:\Program Files\3M\PostSN2Lite\Psn2Lite.exe
O4 - Global Startup: Quicken Scheduled Updates.lnk = C:\Program Files\Quicken\bagent.exe
O4 - Global Startup: Quicken Startup.lnk = C:\Program Files\Quicken\QWDLLS.EXE
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O8 - Extra context menu item: &AIM Search - res://C:\Program Files\AIM Toolbar\AIMBar.dll/aimsearch.htm
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM\aim.exe
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
O9 - Extra button: WeatherBug - {AF6CABAB-61F9-4f12-A198-B7D41EF1CB52} - C:\Program Files\AWS\WeatherBug\Weather.exe (file missing) (HKCU)
O14 - IERESET.INF: START_PAGE_URL=http://qus8l.hpwis.com
O16 - DPF: {03DB6F22-73BD-4C07-883E-0EF63E7628F3} - http://85.255.113.214/1/gdnUS2218.exe
O16 - DPF: {17492023-C23A-453E-A040-C7C580BBF700} (Windows Genuine Advantage Validation Tool) - http://go.microsoft.com/fwlink/?linkid=39204
O16 - DPF: {1F2F4C9E-6F09-47BC-970D-3C54734667FE} (LSSupCtl Class) - http://www.symantec.com/techsupp/asa/ctrl/LSSupCtl.cab
O16 - DPF: {3451DEDE-631F-421C-8127-FD793AFC6CC8} (ActiveDataInfo Class) - http://www.symantec.com/techsupp/asa/ctrl/SymAData.cab
O16 - DPF: {44990200-3C9D-426D-81DF-AAB636FA4345} (Symantec SmartIssue) - http://www.symantec.com/techsupp/asa/ctrl/tgctlsi.cab
O16 - DPF: {44990301-3C9D-426D-81DF-AAB636FA4345} (Symantec Script Runner Class) - http://www.symantec.com/techsupp/asa/ctrl/tgctlsr.cab
O16 - DPF: {49B8E78A-472A-4B32-12B1-1A4B2F92E3C2} - http://85.255.113.214/1/gdnUS2218.exe
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsu...?1124569684441
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsof...?1138422028910
O20 - Winlogon Notify: NavLogon - C:\WINDOWS\System32\NavLogon.dll
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O21 - SSODL: gorgonian - {e944d14a-03aa-43e3-9d0e-4f50c4d1b005} - C:\WINDOWS\system32\eowygj.dll
O23 - Service: Ati HotKey Poller - Unknown owner - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: DefWatch - Symantec Corporation - C:\PROGRA~1\SYMANT~1\SYMANT~1\DefWatch.exe
O23 - Service: HP Configuration Interface Service (HPConfig) - Hewlett-Packard - C:\WINDOWS\system32\HPConfig.exe
O23 - Service: HPWirelessMgr - Hewlett-Packard Co. - C:\Program Files\HPQ\Notebook Utilities\HPWirelessMgr.exe
O23 - Service: Symantec AntiVirus Client (Norton AntiVirus Server) - Symantec Corporation - C:\PROGRA~1\SYMANT~1\SYMANT~1\Rtvscan.exe
O23 - Service: Sony SPTI Service (SPTISRV) - Sony Corporation - C:\PROGRA~1\COMMON~1\SONYSH~1\AVLib\Sptisrv.exe



If possible, I just need to know what is possibly harmful to me or at least how to go about determining what is not good for my computer. And if I should do anything else to get rid of this error message. Thank you so much!