CPU Usage @ 99% or 100%

Hi could I please ask for your advice. I have been having difficulty with my system this week I have an IBM X20 Notebook and I am operatng Windows 2000 Professional.

Whenever I try and open windows explorer it freezes, and the cpu usage become 100%. I am thinking that is a spyware/adware issue.

I've tried disabling everything in taskmgr and it still doesn't work.

I have run antivirus, and hijack this and haven't been able to correct the problem, although as I mentioned before I suspect it IS some poorly written spyware.

Logfile of HijackThis v1.98.0
Scan saved at 8:41:53 AM, on 20/08/2004
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\spoolsv.exe
C:\Program Files\Ahnlab\Smart Update Utility\Ahnsdsv.exe
C:\WINNT\system32\svchost.exe
C:\PROGRA~1\Ahnlab\V3\MonSvcNT.EXE
C:\WINNT\system32\regsvc.exe
C:\WINNT\system32\MSTask.exe
C:\WINNT\system32\stisvc.exe
C:\WINNT\system32\msinc.exe
C:\WINNT\System32\WBEM\WinMgmt.exe
C:\WINNT\system32\mspmspsv.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\system32\wupdated.exe
C:\WINNT\system32\svchost.exe
C:\WINNT\Explorer.EXE
C:\WINNT\system32\taskmgr.exe
C:\WINNT\system32\tp4mon.exe
C:\Program Files\Ahnlab\Smart Update Utility\AhnSD.exe
C:\PROGRA~1\Ahnlab\V3\MonSysNT.exe
C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
C:\PROGRA~1\Ahnlab\V3\V3P3AT.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program Files\MSN Messenger\MsnMsgr.Exe
C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE
C:\program files\TheWeatherNetwork\WeatherEye\WeatherEye.exe
C:\WINNT\system32\internat.exe
C:\Program Files\Yahoo!\Messenger\ypager.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr/*http://www.yahoo.com/ext/search/search.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://red.clientapps.yahoo.com/customize/ie/defaults/sp/ymsgr/*http://www.yahoo.com
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.globeandmail.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr/*http://www.yahoo.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://red.clientapps.yahoo.com/customize/ie/defaults/sb/ymsgr/*http://www.yahoo.com/ext/search/search.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://red.clientapps.yahoo.com/customize/ie/defaults/sp/ymsgr/*http://www.yahoo.com
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://red.clientapps.yahoo.com/customize/ie/defaults/su/ymsgr/*http://www.yahoo.com
O2 - BHO: Yahoo! Companion BHO - {02478D38-C3F9-4efb-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_3_12_0.dll
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: V3 - {76EAE03C-F2B1-4397-97E8-390920B7C2DC} - C:\PROGRA~1\Ahnlab\V3\V3Bar.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: @msdxmLC.dll,-1@1033,&Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINNT\system32\msdxm.ocx
O3 - Toolbar: V3 - {9E3849D6-41EF-4B2F-86B7-632EF90758E4} - C:\PROGRA~1\Ahnlab\V3\V3Bar.dll
O3 - Toolbar: &Yahoo! Companion - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\ycomp5_3_12_0.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [TrackPointSrv] tp4mon.exe
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [AHNSD] "C:\Program Files\Ahnlab\Smart Update Utility\AhnSD.exe"
O4 - HKLM\..\Run: [Microsoft Office] lserv.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_04\bin\jusched.exe
O4 - HKLM\..\Run: [InCD] C:\Program Files\Ahead\InCD\InCD.exe
O4 - HKLM\..\Run: [NeroAutoStartClient] NeroASM.exe
O4 - HKLM\..\Run: [EM_EXeEL] syd.exe
O4 - HKLM\..\Run: [CMESys] "C:\Program Files\Common Files\CMEII\CMESys.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [Microsoft Windows Update] windowsupdate.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [WSAConfiguration] wmon32.exe
O4 - HKLM\..\Run: [Windows Helpers] windowhelpers.exe
O4 - HKLM\..\Run: [Configuration Loader] syscfg32.exe
O4 - HKLM\..\Run: [Windows Update Manager] msinc.exe
O4 - HKLM\..\Run: [Windows Telnet Server] wintel.exe
O4 - HKLM\..\RunServices: [WSAConfiguration] wmon32.exe
O4 - HKLM\..\RunServices: [Windows Helpers] windowhelpers.exe
O4 - HKLM\..\RunServices: [Configuration Loader] syscfg32.exe
O4 - HKLM\..\RunServices: [Windows Update Manager] msinc.exe
O4 - HKLM\..\RunServices: [Windows Telnet Server] wintel.exe
O4 - HKCU\..\Run: [MsnMsgr] "C:\Program Files\MSN Messenger\MsnMsgr.Exe" /background
O4 - HKCU\..\Run: [Yahoo! Pager] C:\Program Files\Yahoo!\Messenger\ypager.exe -quiet
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\Program Files\Microsoft ActiveSync\WCESCOMM.EXE"
O4 - HKCU\..\Run: [WeatherEye] C:\program files\TheWeatherNetwork\WeatherEye\WeatherEye
O4 - HKCU\..\Run: [internat.exe] internat.exe
O4 - HKCU\..\Run: [EM_EXeEL] syd.exe
O4 - HKCU\..\Run: [WeatherCast] C:\Program Files\WeatherCast\Weather.exe /q
O4 - Startup: OpenOffice.org 1.1.2.lnk = C:\Program Files\OpenOffice.org1.1.1\program\quickstart.exe
O4 - Global Startup: GStartup.lnk = C:\Program Files\Common Files\GMT\GMT.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O8 - Extra context menu item: &Google Search - res://c:\program files\google\GoogleToolbar2.dll/cmsearch.html
O8 - Extra context menu item: Backward Links - res://c:\program files\google\GoogleToolbar2.dll/cmbacklinks.html
O8 - Extra context menu item: Cached Snapshot of Page - res://c:\program files\google\GoogleToolbar2.dll/cmcache.html
O8 - Extra context menu item: Similar Pages - res://c:\program files\google\GoogleToolbar2.dll/cmsimilar.html
O8 - Extra context menu item: Translate into English - res://c:\program files\google\GoogleToolbar2.dll/cmtrans.html
O8 - Extra context menu item: Yahoo! Dictionary - file:///C:\Program Files\Yahoo!\Common/ycdict.htm
O8 - Extra context menu item: Yahoo! Search - file:///C:\Program Files\Yahoo!\Common/ycsrch.htm
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - (no file)
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - (no file)
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\Program Files\Microsoft ActiveSync\INETREPL.DLL
O9 - Extra button: Related - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra 'Tools' menuitem: Show &Related Links - {c95fe080-8f5d-11d2-a20b-00aa003c157a} - C:\WINNT\web\related.htm
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1\YAHOO!\MESSEN~1\YPAGER.EXE
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\PROGRA~1\YAHOO!\MESSEN~1\YPAGER.EXE
O16 - DPF: {293834C7-05B9-418C-A7DC-B59B08C8716C} (IntraMap2DXSeBIS Control) - http://211.234.116.66/ActiveX/IntraMap2DXSeBIS.cab
O16 - DPF: {74FFE28D-2378-11D5-990C-006094235084} (IBM Access Support) - https://www-3.ibm.com/pc/support/access/aslibmain/content/IbmEgath.cab
O16 - DPF: {83682BF2-2351-45C1-963C-9BB635A05178} (IssacWebSE2 Class) - http://pg.dacom.net/penta/ISSACWebSE2.cab
O16 - DPF: {9600F64D-755F-11D4-A47F-0001023E6D5A} (Shutterfly Picture Upload Plugin) - http://web1.shutterfly.com/downloads/Uploader.cab
O16 - DPF: {A17E30C4-A9BA-11D4-8673-60DB54C10000} (YahooYMailTo Class) - http://us.dl1.yimg.com/download.yahoo.com/dl/installs/yse/ymmapi_416.dll
O16 - DPF: {CC05BC12-2AA2-4AC7-AC81-0E40F83B1ADF} (Live365Player Class) - http://www.live365.com/players/play365.cab

I would appreciate any assistance I colud get.