iexplore.exe uses my 99% CPU. Please help.

I have problem that the iexplore.exe uses my 99% CPU. Please help. Here is my HijackThis log:

Logfile of HijackThis v1.99.0
Scan saved at 4:10:15 PM, on 1/25/2005
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)

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:\PROGRA~1\SYMANT~1\SYMANT~1\DefWatch.exe
C:\Program Files\Ahead\InCD\InCDsrv.exe
C:\Program Files\Common Files\Microsoft Shared\VS7Debug\mdm.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\Rtvscan.exe
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\Explorer.EXE
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wltrysvc.exe
C:\WINDOWS\System32\bcmwltry.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\WINDOWS\system32\pctspk.exe
C:\Program Files\Apoint\Apoint.exe
C:\Program Files\Dell\QuickSet\quickset.exe
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\Program Files\Picasa\PicasaMediaDetector.exe
C:\Program Files\Common Files\KingSoft\KSG\client.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe
C:\PROGRA~1\Ahead\NEROPH~1\data\Xtras\mssysmgr.exe
C:\PROGRA~1\Webshots\webshots.scr
C:\Program Files\Apoint\Apntex.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktopIndex.exe
C:\Program Files\Google\Google Desktop Search\GoogleDesktopCrawl.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\WinRAR\WinRAR.exe
C:\DOCUME~1\GUANGC~1.HAR\LOCALS~1\Temp\Rar$EX00.716\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://my.netzero.net/s/search?r=minisearch
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = http://my.netzero.net/s/search?r=minisearch
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://my.netzero.net/s/search?r=minisearch
R3 - URLSearchHook: URLSearchHook Class - {37D2CDBF-2AF4-44AA-8113-BD0D2DA3C2B8} - C:\Program Files\NZSearch\SearchEnh1.dll
R3 - URLSearchHook: (no name) - {00A6FAF6-072E-44cf-8957-5838F569A31D} - (no file)
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
N3 - Netscape 7: user_pref("browser.startup.homepage", "http://www.countway.med.harvard.edu/"); (C:\Documents and Settings\Guangchao\Application Data\Mozilla\Profiles\default\ee75ogfx.slt\prefs.js)
N3 - Netscape 7: user_pref("browser.search.defaultengine", "engine://C%3A%5CProgram%20Files%5CNetscape%5CNetscape%5Csearchplugins%5CSBWeb_01.src"); (C:\Documents and Settings\Guangchao\Application Data\Mozilla\Profiles\default\ee75ogfx.slt\prefs.js)
O2 - BHO: X1IEHook Class - {52706EF7-D7A2-49AD-A615-E903858CF284} - C:\Program Files\NetZero\qsacc\X1IEBHO.dll
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: Google Toolbar Helper - {AA58ED58-01DD-4d91-8333-CF10577473F7} - c:\program files\google\googletoolbar2.dll
O3 - Toolbar: Adobe PDF - {47833539-D0C5-4125-9FA8-0819E2EAAC93} - C:\Program Files\Adobe\Adobe Acrobat 6.0\Acrobat\AcroIEFavClient.dll
O3 - Toolbar: ZeroBar - {F5735C15-1FB2-41FE-BA12-242757E69DDE} - C:\Program Files\NetZero\Toolbar.dll
O3 - Toolbar: ZeroBar - {F0F8ECBE-D460-4B34-B007-56A92E8F84A7} - C:\Program Files\NetZero\toolbar.dll
O3 - Toolbar: &Google - {2318C2B1-4965-11d4-9B18-009027A5CD4F} - c:\program files\google\googletoolbar2.dll
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [PHIME2002ASync] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /SYNC
O4 - HKLM\..\Run: [PHIME2002A] C:\WINDOWS\System32\IME\TINTLGNT\TINTSETP.EXE /IMEName
O4 - HKLM\..\Run: [PCTVOICE] pctspk.exe
O4 - HKLM\..\Run: [nwiz] nwiz.exe /installquiet
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [IndexSearch] C:\Program Files\Scansoft\PaperPort\IndexSearch.exe
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [IPWD] C:\WINDOWS\IPWD.exe
O4 - HKLM\..\Run: [Apoint] C:\Program Files\Apoint\Apoint.exe
O4 - HKLM\..\Run: [Dell QuickSet] C:\Program Files\Dell\QuickSet\quickset.exe
O4 - HKLM\..\Run: [NMGameX_AutoRun] C:\WINDOWS\System32\Rundll32.exe NMGameX.dll,LiveProcess /aa
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [LifeScape Media Detector] C:\Program Files\Picasa\PicasaMediaDetector.exe
O4 - HKLM\..\Run: [KsgUpdateRun] C:\Program Files\Common Files\KingSoft\KSG\client.exe
O4 - HKCU\..\Run: [spc_w] "C:\Program Files\NZSearch\hcm.exe" -w
O4 - HKCU\..\Run: [Google Desktop Search] "C:\Program Files\Google\Google Desktop Search\GoogleDesktop.exe" /startup
O4 - HKCU\..\Run: [PhotoShow Deluxe Media Manager] C:\PROGRA~1\Ahead\NEROPH~1\data\Xtras\mssysmgr.exe
O4 - Startup: Webshots.lnk = C:\Program Files\Webshots\Launcher.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: Display All Images with Full Quality - res://C:\Program Files\NetZero\qsacc\appres.dll/228
O8 - Extra context menu item: Display Image with Full Quality - res://C:\Program Files\NetZero\qsacc\appres.dll/227
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O8 - Extra context menu item: Heroplayer Online - C:\HEROSOFT\Hero3000\MPURLGET.HTM
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
O9 - Extra button: Short Message - {00000000-0000-0001-0001-596BAEDD1289} - http://sms.3721.com/ie/index.htm (file missing)
O9 - Extra button: Instant Messenger - {0F7DE07D-BD74-4991-9D5F-ECBB8391875D} - http://cn.rd.yahoo.com/home/messenger/bjk/clientbtn/?http://cn.messenger.yahoo.com/ (file missing)
O9 - Extra button: hero player - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - Extra 'Tools' menuitem: hero player - {367E0A21-8601-4986-9C9A-153BF5ACA118} - C:\HEROSOFT\Hero3000\MPLAYER.EXE
O9 - Extra button: PowerWord - {9A687CA6-D585-4947-9ED9-BE96071F5CD9} - C:\PROGRA~1\Kingsoft\POWERW~1\XDictExB.dll
O9 - Extra button: °Ù¶ÈËÑË÷°é - {BC207F7D-3E63-4ACA-99B5-FB5F8428200C} - C:\WINDOWS\System32\shdocvw.dll
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
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: [!IESearch] !IESearch
O12 - Plugin for .mov: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin.dll
O12 - Plugin for .tif: C:\Program Files\Internet Explorer\PLUGINS\npqtplugin5.dll
O16 - DPF: {01A88BB1-1174-41EC-ACCB-963509EAE56B} (SysProWmi Class) - http://support.dell.com/systemprofiler/SysPro.CAB
O16 - DPF: {BC207F7D-3E63-4ACA-99B5-FB5F8428200C} - http://bar.baidu.com/update/IESearch.cab
O16 - DPF: {CA034DCC-A580-4333-B52F-15F98C42E04C} (Downloader Class) - https://www.stopzilla.com/_download/Auto_Installer/dwnldr.cab
O16 - DPF: {E13F1132-4CA0-4005-84D3-51406E27D269} (BTDownloadCtrl Control) - http://www.shockwave.com/content/thinktanks/BTDownloadCtrl.cab
O18 - Protocol: dic - {C21F5C32-F57A-4A0D-8E0A-B672691C52D0} - C:\PROGRA~1\Kingsoft\POWERW~1\XDictExB.dll
O18 - Protocol: mp3 - {BC207F7D-3E63-4ACA-99B5-FB5F8428200C} - (no file)
O20 - AppInit_DLLs: 58p2fs7ehr84fydll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dl l.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll.dll
O23 - Service: Adobe LM Service - Unknown - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: AdobeVersionCue - Adobe Sytems - C:\Program Files\Adobe\Adobe Version Cue\service\VersionCue.exe
O23 - Service: DefWatch - Symantec Corporation - C:\PROGRA~1\SYMANT~1\SYMANT~1\DefWatch.exe
O23 - Service: InCD Helper - AHEAD Software - C:\Program Files\Ahead\InCD\InCDsrv.exe
O23 - Service: Symantec AntiVirus Client - Symantec Corporation - C:\PROGRA~1\SYMANT~1\SYMANT~1\Rtvscan.exe
O23 - Service: NVIDIA Driver Helper Service - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: WLTRYSVC - Unknown - C:\WINDOWS\System32\wltrysvc.exe C:\WINDOWS\System32\bcmwltry.exe (file missing)

Thread split - a new thread for each new problem please.