computer slugish

Sometimes the computer will get to the point of being so slow that you cannot close or open programs or navigate through programs and has to be rebooted. Hijack log as follows:

Logfile of HijackThis v1.99.1
Scan saved at 8:54:52 AM, on 2/2/2007
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v6.00 SP1 (6.00.2800.1106)

Running processes:
C:\WINNT\System32\smss.exe
C:\WINNT\system32\winlogon.exe
C:\WINNT\system32\services.exe
C:\WINNT\system32\lsass.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\System32\msdtc.exe
C:\WINNT\System32\tcpsvcs.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Citrix\GoToMyPC\g2svc.exe
C:\WINNT\system32\hidserv.exe
C:\Program Files\Citrix\GoToMyPC\g2comm.exe
C:\WINNT\System32\llssrv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\Program Files\Citrix\GoToMyPC\g2pre.exe
C:\Program Files\Citrix\GoToMyPC\g2tray.exe
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\tlntsvr.exe
C:\Program Files\Viewpoint\Common\ViewpointService.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\Dfssvc.exe
C:\WINNT\System32\inetsrv\inetinfo.exe
C:\Program Files\Common Files\Microsoft Shared\MSSearch\Bin\mssearch.exe
C:\WINNT\System32\svchost.exe
C:\Program Files\Viewpoint\Viewpoint Manager\ViewMgr.exe
C:\WINNT\Explorer.EXE
C:\Program Files\Java\jre1.5.0_08\bin\jusched.exe
C:\WINNT\system32\w?auclt.exe
C:\PROGRA~1\COMMON~1\SSEMBL~1\wucrtupd.exe
C:\Program Files\Mozilla Firefox\firefox.exe
C:\Program Files\WinZip\WINZIP32.EXE
C:\PROGRA~1\WINZIP\wzqkpick.exe
C:\PROGRA~1\WINZIP\winzip32.exe
C:\Documents and Settings\Administrator\Local Settings\Temp\wzceef\HijackThis.exe
C:\Program Files\Java\jre1.5.0_08\bin\jucheck.exe
C:\WINNT\System32\svchost.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com/
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.yahoo.com
R3 - URLSearchHook: (no name) - {FA0D365B-F1BA-8618-CD3E-FEBAAF4743E4} - C:\WINNT\system32\ylis.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {1C044AAD-7955-4cbd-8175-501A165C4E5D} - C:\WINNT\system32\req.dat (file missing)
O2 - BHO: PCTools Site Guard - {5C8B2A36-3DB1-42A4-A3CB-D426709BBFEB} - C:\PROGRA~1\SPYWAR~2\tools\iesdsg.dll (file missing)
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_08\bin\ssv.dll
O2 - BHO: Viewpoint Toolbar BHO - {A7327C09-B521-4EDB-8509-7D2660C9EC98} - C:\Program Files\Viewpoint\Viewpoint Toolbar\3.7.0\ViewBarBHO.dll
O2 - BHO: (no name) - {FA0D365B-F1BA-8618-CD3E-FEBAAF4743E4} - C:\WINNT\system32\ylis.dll
O3 - Toolbar: (no name) - {C5183ABC-EB6E-4E05-B8C9-500A16B6CF94} - (no file)
O3 - Toolbar: Viewpoint Toolbar - {F8AD5AA5-D966-4667-9DAF-2561D68B2012} - C:\Program Files\Common Files\Viewpoint\Toolbar Runtime\3.7.0\IEViewBar.dll
O4 - HKLM\..\Run: [SysInit] wininit32.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_08\bin\jusched.exe"
O4 - HKLM\..\Run: [GoToMyPC] C:\Program Files\Citrix\GoToMyPC\g2svc.exe -logon
O4 - HKCU\..\Run: [SysInit] wininit32.exe
O4 - HKCU\..\Run: [Kjyh] C:\WINNT\system32\w?auclt.exe
O4 - HKCU\..\Run: [Wulo] "C:\PROGRA~1\COMMON~1\SSEMBL~1\wucrtupd.exe" -vt rbnd
O4 - Global Startup: QuickBooks Update Agent.lnk = C:\Program Files\Common Files\Intuit\QuickBooks\QBUpdate\qbupdate.exe
O4 - Global Startup: WinZip Quick Pick.lnk = C:\Program Files\WinZip\WZQKPICK.EXE
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_08\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_08\bin\ssv.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~3\OFFICE11\REFIEBAR.DLL
O15 - Trusted Zone: *.frame.crazywinnings.com
O15 - Trusted Zone: *.awmdabest.com (HKLM)
O15 - Trusted Zone: *.frame.crazywinnings.com (HKLM)
O17 - HKLM\System\CCS\Services\Tcpip\..\{517D4788-E47C-405D-A4AB-379BBDC445AC}: NameServer = 68.87.68.162,68.87.74.162
O20 - Winlogon Notify: req - C:\WINNT\system32\req.dat (file missing)
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - VERITAS Software Corp. - C:\WINNT\System32\dmadmin.exe
O23 - Service: GoToMyPC - Unknown owner - C:\Program Files\Citrix\GoToMyPC\g2svc.exe" -service (file missing)
O23 - Service: Viewpoint Manager Service - Viewpoint Corporation - C:\Program Files\Viewpoint\Common\ViewpointService.exe