XP running very slow on
1) start up
2) shutdown
3) during use of all applications
4) Internet access

I am a novice, please translate any technichal jargon.

Logfile of HijackThis v1.99.1
Scan saved at 3:08:40 AM, on 1/3/2007
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.5335.0005)

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\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\EPSON\ESM2\eEBSVC.exe
c:\program files\mcafee.com\agent\mcdetect.exe
c:\PROGRA~1\mcafee.com\vso\mcshield.exe
c:\PROGRA~1\mcafee.com\agent\mctskshd.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Wireless-G Portable USB Adapter\WLService.exe
C:\Program Files\Wireless-G Portable USB Adapter\WUSB54GP.exe
c:\PROGRA~1\mcafee.com\vso\OasClnt.exe
c:\program files\mcafee.com\vso\mcvsshld.exe
c:\program files\mcafee.com\agent\mcagent.exe
c:\progra~1\mcafee.com\vso\mcvsescn.exe
C:\Program Files\Java\jre1.5.0_01\bin\jusched.exe
D:\Program Files\CyberLink\PowerDVD\PDVDServ.exe
C:\WINDOWS\system32\pctspk.exe
C:\Program Files\Synaptics\SynTP\SynTPLpr.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fppdis2a.exe
C:\WINDOWS\System32\spool\DRIVERS\W32X86\3\fpdisp5a.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\Hewlett-Packard\HP OfficeJet T Series\bin\ktchnsnk.exe
C:\progra~1\vision~2\paperp~1\pptd40nt.exe
C:\Program Files\CA\eTrust Internet Security Suite\caissdt.exe
C:\Program Files\CA\eTrust Internet Security Suite\eTrust PestPatrol Anti-Spyware\PPActiveDetection.exe
C:\Program Files\Google\GoogleToolbarNotifier\1.2.908.5008\GoogleToolbarNotifier.exe
C:\Program Files\EPSON\ESM2\STMS.exe
C:\Program Files\Visioneer\PaperPort\Config\Ereg\REMIND32.EXE
C:\Program Files\Common Files\Real\Update_OB\rnathchk.exe
C:\Program Files\mFire\dialer.exe
C:\WINDOWS\PCHealth\HelpCtr\Binaries\MSConfig.exe
D:\Program Files\Microsoft Office\OFFICE11\WINWORD.EXE
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\DOCUME~1\Admin\LOCALS~1\Temp\Temporary Directory 1 for hijackthis.zip\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=54729
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=552…cid={SUB_CLCID}
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: McAfee VirusScan - {BA52B914-B692-46c4-B683-905236F6F655} - c:\progra~1\mcafee.com\vso\mcvsshl.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [HP OfficeJet T Series] "C:\Program Files\Hewlett-Packard\HP OfficeJet T Series\bin\ktchnsnk.exe" -reg "Software\Hewlett-Packard\OfficeJet T Series\Install"
O8 - Extra context menu item: E&xport to Microsoft Excel - res://D:\PROGRA~1\MICROS~1\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_01\bin\npjpi150_01.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - D:\PROGRA~1\MICROS~1\OFFICE11\REFIEBAR.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
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {4ED9DDF0-7479-4BBE-9335-5A1EDB1D8A21} (McAfee.com Operating System Class) - http://download.mcafee.com/molbin/shared/m…01/mcinsctl.cab
O16 - DPF: {6E32070A-766D-4EE6-879C-DC1FA91D2FC3} (MUWebControl Class) - http://update.microsoft.com/microsoftupdat…b?1143225642067
O16 - DPF: {BCC0FF27-31D9-4614-A68E-C18E1ADA4389} (DwnldGroupMgr Class) - http://download.mcafee.com/molbin/shared/m…,26/mcgdmgr.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{03B0BD38-6DC6-470C-AA1D-A3459BB0BC7A}: NameServer = 64.136.173.8 64.136.164.66
O17 - HKLM\System\CS1\Services\Tcpip\..\{03B0BD38-6DC6-470C-AA1D-A3459BB0BC7A}: NameServer = 64.136.173.8 64.136.164.66
O20 - Winlogon Notify: WgaLogon - C:\WINDOWS\SYSTEM32\WgaLogon.dll
O23 - Service: CA ISafe (CAISafe) - Computer Associates International, Inc. - C:\WINDOWS\system32\ZoneLabs\isafe.exe
O23 - Service: EpsonBidirectionalService - Unknown owner - C:\Program Files\EPSON\ESM2\eEBSVC.exe
O23 - Service: McAfee WSC Integration (McDetect.exe) - McAfee, Inc - c:\program files\mcafee.com\agent\mcdetect.exe
O23 - Service: McAfee.com McShield (McShield) - McAfee Inc. - c:\PROGRA~1\mcafee.com\vso\mcshield.exe
O23 - Service: McAfee Task Scheduler (McTskshd.exe) - McAfee, Inc - c:\PROGRA~1\mcafee.com\agent\mctskshd.exe
O23 - Service: McAfee SecurityCenter Update Manager (mcupdmgr.exe) - McAfee, Inc - C:\PROGRA~1\McAfee.com\Agent\mcupdmgr.exe
O23 - Service: TrueVector Internet Monitor (vsmon) - Zone Labs, LLC - C:\WINDOWS\system32\ZoneLabs\vsmon.exe
O23 - Service: WUSB54GPSVC - Unknown owner - C:\Program Files\Wireless-G Portable USB Adapter\WLService.exe" "WUSB54GP.exe (file missing)

THANK YOU IN ADVANCE FOR YOUR ASSISTANCE