my father seems to keep getting his system infected to the point it barley will function.
id like to know what is slowing it down and how he can avoid this in the future.
last time i just reformated the disk and reinstalled everything.
dont want to go through that on a regular basis.
thanks all

here is the log file

Logfile of HijackThis v1.99.1
Scan saved at 5:48:50 AM, on 2/5/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)

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:\WINDOWS\system32\ZoneLabs\vsmon.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\ISafe.exe
C:\WINDOWS\system32\HPZipm12.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust Anti-Spam\QSP-2.1.215.5\QOELoader.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\CAVTray.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\CAVRID.exe
C:\Program Files\CA\eTrust EZ Armor\eTrust PestPatrol\PPActiveDetection.exe
C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\PROGRA~1\MYWEBS~1\bar\1.bin\m3SrchMn.exe
C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Outlook Express\msimn.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\VetMsg.exe
C:\Program Files\Hijackthis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R3 - URLSearchHook: (no name) - {00A6FAF6-072E-44cf-8957-5838F569A31D} - C:\Program Files\MyWebSearch\SrchAstt\1.bin\MWSSRCAS.DLL
O2 - BHO: MyWebSearch Search Assistant BHO - {00A6FAF1-072E-44cf-8957-5838F569A31D} - C:\Program Files\MyWebSearch\SrchAstt\1.bin\MWSSRCAS.DLL
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: mwsBar BHO - {07B18EA1-A523-4961-B6BB-170DE4475CCA} - C:\Program Files\MyWebSearch\bar\1.bin\MWSBAR.DLL
O3 - Toolbar: My &Web Search - {07B18EA9-A523-4961-B6BB-170DE4475CCA} - C:\Program Files\MyWebSearch\bar\1.bin\MWSBAR.DLL
O4 - HKLM\..\Run: [HP Software Update] C:\Program Files\HP\HP Software Update\HPWuSchd2.exe
O4 - HKLM\..\Run: [QOELOADER] "C:\Program Files\CA\eTrust EZ Armor\eTrust Anti-Spam\QSP-2.1.215.5\QOELoader.exe"
O4 - HKLM\..\Run: [CaAvTray] "C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\CAVTray.exe"
O4 - HKLM\..\Run: [CAVRID] "C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\CAVRID.exe"
O4 - HKLM\..\Run: [eTrustPPAP] "C:\Program Files\CA\eTrust EZ Armor\eTrust PestPatrol\PPActiveDetection.exe"
O4 - HKLM\..\Run: [Omnipage] C:\Program Files\ScanSoft\OmniPageSE\opware32.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Zone Labs Client] "C:\Program Files\Zone Labs\ZoneAlarm\zlclient.exe"
O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Program Files\Common Files\InstallShield\UpdateService\isuspm.exe" -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [My Web Search Bar Search Scope Monitor] "C:\PROGRA~1\MYWEBS~1\bar\1.bin\m3SrchMn.exe" /m=0
O4 - HKLM\..\Run: [MyWebSearch Email Plugin] C:\PROGRA~1\MYWEBS~1\bar\1.bin\mwsoemon.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Search - http://edits.mywebsearch.com/toolbaredits/…?p=ZUxdm462LDUS
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - %windir%\Network Diagnostic\xpnetdiag.exe (file missing)
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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {01113300-3E00-11D2-8470-0060089874ED} (Support.com Configuration Class) - http://supportcenter.rr.com/sdccommon/download/tgctlcm.cab
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://a1540.g.akamai.net/7/1540/52/200610…ex/qtplugin.cab
O16 - DPF: {05D44720-58E3-49E6-BDF6-D00330E511D3} (StagingUI Object) - http://zone.msn.com/binFrameWork/v10/StagingUI.cab53083.cab
O16 - DPF: {1D4DB7D2-6EC9-47A3-BD87-1E41684E07BB} - http://ak.exe.imgfarm.com/images/nocache/f…p1.0.0.15-3.cab
O16 - DPF: {3BB54395-5982-4788-8AF4-B5388FFDD0D8} (ZoneBuddy Class) - http://zone.msn.com/BinFrameWork/v10/ZBuddy.cab53083.cab
O16 - DPF: {5736C456-EA94-4AAC-BB08-917ABDD035B3} (ZonePAChat Object) - http://zone.msn.com/binframework/v10/ZPAChat.cab53083.cab
O16 - DPF: {63F5866B-A7C5-40B4-9A89-0CCA99726C8D} (LogMeIn Rescue Applet Downloader) - https://secure.logmeinrescue.com/Customer/R…eDownloader.cab
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/…b?1164073595175
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdat…b?1164073694458
O16 - DPF: {8AD9C840-044E-11D1-B3E9-00805F499D93} - http://javadl-esd.sun.com/update/1.3.1/jinstall-13-win32.cab
O16 - DPF: {B8BE5E93-A60C-4D26-A2DC-220313175592} (ZoneIntro Class) - http://cdn2.zone.msn.com/binFramework/v10/…ro.cab53083.cab
O16 - DPF: {CAC181B0-4D70-402D-B571-C596A47D0CE0} (CBankshotZoneCtrl Class) - http://zone.msn.com/bingame/zpagames/zpa_pool.cab42858.cab
O16 - DPF: {D4323BF2-006A-4440-A2F5-27E3E7AB25F8} (Virtools WebPlayer Class) - http://a532.g.akamai.net/f/532/6712/5m/vir…5/installer.exe
O16 - DPF: {DA2AA6CF-5C7A-4B71-BC3B-C771BB369937} (StadiumProxy Class) - http://zone.msn.com/binframework/v10/StProxy.cab53852.cab
O21 - SSODL: WPDShServiceObj - {AAA288BA-9A4C-45B0-95D7-94D524869DB5} - C:\WINDOWS\system32\WPDShServiceObj.dll
O23 - Service: CAISafe - Computer Associates International, Inc. - C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\ISafe.exe
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: VET Message Service (VETMSGNT) - Computer Associates International, Inc. - C:\Program Files\CA\eTrust EZ Armor\eTrust EZ Antivirus\VetMsg.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe