My pc is having some speed and registry problem, i hv tried a number of ways but still cannot resolve it, can somebody help me? thanks a lot

My computer spec:
System : Microsoft Windows XP
Professional
Version 2002
Service Pack 2

Computer : Intel(R)
Pentium(R) 4 CPU 2.80GHz
2.81GHz, 1.25 GB of RAM


Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 3:55:56 AM, on 5/11/2008
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2180)
Boot mode: Normal
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:\Program2\Lavasoft\Ad-Aware 2007\aawservice.exe
C:\WINDOWS\Explorer.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\system32\RVHOST.exe
C:\WINDOWS\system32\conime.exe
c:\progra~1\mcafee\mcafee antispyware\massrv.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\SOUNDMAN.EXE
C:\Program Files\McAfee.com\VSO\mcvsshld.exe
C:\Program Files\McAfee.com\VSO\oasclnt.exe
c:\program files\mcafee.com\agent\mcagent.exe
c:\progra~1\mcafee.com\vso\mcvsescn.exe
C:\PROGRA~1\McAfee\SPAMKI~1\MskAgent.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfService.exe
C:\WINDOWS\system\Fun.exe
C:\WINDOWS\dc.exe
C:\Program Files\Java\jre1.5.0_15\bin\jusched.exe
C:\WINDOWS\SVIQ.EXE
C:\Program Files\McAfee\McAfee QuickClean\Plguni.exe
C:\PROGRA~1\McAfee\SPAMKI~1\MSKSrvr.exe
C:\WINDOWS\system32\RVHOST.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\Norton Utilities\NPROTECT.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\Program Files\Speed Disk\nopdb.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\svchost.exe
C:\PROGRA~1\McAfee.com\PERSON~1\MpfAgent.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Messenger\msmsgs.exe
c:\progra~1\mcafee.com\vso\mcvsftsn.exe
C:\WINDOWS\system32\RVHOST.exe
C:\Program Files\Common Files\Real\Update_OB\realsched.exe
C:\Program2\FlashGet\BitComet\BitComet.exe
C:\WINDOWS\system32\drwtsn32.exe
C:\WINDOWS\system32\drwtsn32.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program2\Trend Micro\HijackThis\HijackThis.exe
R3 - URLSearchHook: (no name) - _{855F3B16-6D32-4fe6-8A56-BBB695989046} - (no file)
R3 - URLSearchHook: ????é?¨2¨o? - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
R3 - URLSearchHook: (no name) - {DB8B2393-7A6C-4C76-88CE-6B1F6FF6FFE9} - (no file)
F2 - REG:system.ini: Shell=Explorer.exe RVHOST.exe
F3 - REG:win.ini: load=C:\WINDOWS\inf\Other.exe
F3 - REG:win.ini: run=C:\WINDOWS\system32\config\Win.exe
O2 - BHO: QQToolbar - {29CF293A-1E7D-4069-9E11-E39698D0AF95} - C:\Program Files\Tencent\QQToolbar\IEBar.dll (file missing)
O2 - BHO: McAfee AntiPhishing Filter - {41D68ED8-4CFF-4115-88A6-6EBB8AF19000} - c:\program files\mcafee\spamkiller\mcapfbho.dll
O2 - BHO: Idea2 SidebarBrowserMonitor Class - {45AD732C-2CE2-4666-B366-B2214AD57A49} - C:\Program2\Desktop Sidebar\sbhelp.dll
O2 - BHO: (no name) - {669751ED-D558-49AE-B01A-3B374CC7910E} - C:\WINDOWS\system32\SSup.dll
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_15\bin\ssv.dll
O2 - BHO: ThunderBHO - {889D2FEB-5411-4565-8998-1DD2C5261283} - C:\Program2\Xun Lei\ComDlls\XunLeiBHO_002.dll
O3 - Toolbar: McAfee VirusScan - {BA52B914-B692-46c4-B683-905236F6F655} - c:\progra~1\mcafee.com\vso\mcvsshl.dll
O3 - Toolbar: (no name) - {115F6E46-FCBC-41ed-B3B5-3BDDD4AAB5E5} - (no file)
O3 - Toolbar: ????é?¨2¨o? - {406F94F0-504F-4a40-8DFD-58B0666ABEBD} - C:\PROGRA~1\Yahoo!\ASSIST~1\Assist\yasbar.dll
O3 - Toolbar: BitComet Toolbar - {2E608F70-C430-4bc5-96F6-608E02EBA5B2} - C:\Program Files\BitComet Toolbar\v2.0.0.1\BitComet_Toolbar.dll
O3 - Toolbar: QQToolbar - {29CF293A-1E7D-4069-9E11-E39698D0AF95} - C:\Program Files\Tencent\QQToolbar\IEBar.dll (file missing)
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [VSOCheckTask] "C:\PROGRA~1\McAfee.com\VSO\mcmnhdlr.exe" /checktask
O4 - HKLM\..\Run: [VirusScan Online] C:\Program Files\McAfee.com\VSO\mcvsshld.exe
O4 - HKLM\..\Run: [OASClnt] C:\Program Files\McAfee.com\VSO\oasclnt.exe
O4 - HKLM\..\Run: [MSKAGENTEXE] C:\PROGRA~1\McAfee\SPAMKI~1\MskAgent.exe
O4 - HKLM\..\Run: [MSKDetectorExe] C:\PROGRA~1\McAfee\SPAMKI~1\MSKDetct.exe /startup
O4 - HKLM\..\Run: [MPFExe] C:\PROGRA~1\McAfee.com\PERSON~1\MpfTray.exe
O4 - HKLM\..\Run: [MCUpdateExe] c:\PROGRA~1\mcafee.com\agent\mcupdate.exe
O4 - HKLM\..\Run: [MCAgentExe] c:\PROGRA~1\mcafee.com\agent\mcagent.exe
O4 - HKLM\..\Run: [TkBellExe] "C:\Program Files\Common Files\Real\Update_OB\realsched.exe" -osboot
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program2\Quick Time7\qttask.exe" -atboottime
O4 - HKLM\..\Run: [stup.exe] Rundll32.exe C:\PROGRA~1\TENCENT\SSPlus\SPlus1.dll,Rundll32 R
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_15\bin\jusched.exe"
O4 - HKLM\..\Run: [IMJPMIG8.1] "C:\WINDOWS\IME\imjp8_1\IMJPMIG.EXE" /Spoil /RemAdvDef /Migration32
O4 - HKLM\..\Run: [MSPY2002] C:\WINDOWS\system32\IME\PINTLGNT\ImScInst.exe /SYNC
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 - HKCU\..\Run: [McAfee QuickClean Imonitor] C:\Program Files\McAfee\McAfee QuickClean\Plguni.exe /START
O4 - HKCU\..\Run: [STYLEXP] C:\Program Files\TGTSoft\StyleXP\StyleXP.exe -Hide
O4 - HKCU\..\Run: [Yahoo Messengger] C:\WINDOWS\system32\RVHOST.exe
O4 - HKCU\..\Run: [dc2k5] C:\WINDOWS\SVIQ.EXE
O4 - HKCU\..\Run: [Fun] C:\WINDOWS\system\Fun.exe
O4 - HKCU\..\Run: [dc] C:\WINDOWS\dc.exe
O4 - HKCU\..\Run: [Uniblue RegistryBooster 2] C:\Program2\RegistryBooster 2\RegistryBooster.exe /S
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKLM\..\Policies\Explorer\Run: [kernel32.dll] C:\WINDOWS\System32\mssearchnet.exe
O4 - HKUS\S-1-5-18\..\Run: [Yahoo Messengger] C:\WINDOWS\system32\RVHOST.exe (User 'SYSTEM')
O4 - HKUS\.DEFAULT\..\Run: [Yahoo Messengger] C:\WINDOWS\system32\RVHOST.exe (User 'Default user')
O6 - HKCU\Software\Policies\Microsoft\Internet Explorer\Control Panel present
O7 - HKCU\Software\Microsoft\Windows\CurrentVersion\Pol icies\System, DisableRegedit=1
O8 - Extra context menu item: &Clean Traces - C:\Program2\DAP\Privacy Package\dapcleanerie.htm
O8 - Extra context menu item: &Download with &DAP - C:\Program2\DAP\dapextie.htm
O8 - Extra context menu item: &使用迅雷下载 - C:\Program2\Xun Lei\Program\GetUrl.htm
O8 - Extra context menu item: &使用迅雷下载全部链接 - C:\Program2\Xun Lei\Program\GetAllUrl.htm
O8 - Extra context menu item: Access Internet Keyword - C:\Program Files\CNNIC\Cdn\cnnic.htm
O8 - Extra context menu item: Download &all with DAP - C:\Program2\DAP\dapextie2.htm
O8 - Extra context menu item: Quick &Search (Yisou.com) - res://C:\Program Files\YiSou\yisou.dll/232
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_15\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_15\bin\ssv.dll
O9 - Extra button: Subscribe in Desktop Sidebar - {09FE188B-6E85-479e-9411-51FB2220DF80} - C:\Program2\Desktop Sidebar\sbhelp.dll
O9 - Extra 'Tools' menuitem: Subscribe in Desktop Sidebar - {09FE188B-6E85-479e-9411-51FB2220DF80} - C:\Program2\Desktop Sidebar\sbhelp.dll
O9 - Extra button: (no name) - {39FD89BF-D3F1-45b6-BB56-3582CCF489E1} - c:\program files\mcafee\spamkiller\mcapfbho.dll
O9 - Extra 'Tools' menuitem: McAfee AntiPhishing Filter - {39FD89BF-D3F1-45b6-BB56-3582CCF489E1} - c:\program files\mcafee\spamkiller\mcapfbho.dll
O9 - Extra button: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Program2\ICQLite\ICQLite.exe
O9 - Extra 'Tools' menuitem: ICQ Lite - {B863453A-26C3-4e1f-A54D-A2CD196348E9} - C:\Program2\ICQLite\ICQLite.exe
O9 - Extra button: FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\Program2\FlashGet\flashget.exe (file missing)
O9 - Extra 'Tools' menuitem: &FlashGet - {D6E814A0-E0C5-11d4-8D29-0050BA6940E3} - C:\Program2\FlashGet\flashget.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
O16 - DPF: {1FAF427B-1EE5-43D3-A023-3009142AFCD9} (CS Order Entry Control (MBB)) - https://www.maybank2u.com.my/OST/MBB.../csoex_mbb.cab
O16 - DPF: {B9B2EE1A-E314-4338-A305-BE845EACB112} (CyberStock 250) - https://www.maybank2u.com.my/OST/MBBWecos/Cab/cswx.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{CA321A16-9168-4868-BE1C-5E5BB94A11C2}: NameServer = 202.188.0.133,202.188.1.5
O22 - SharedTaskScheduler: Reload Browse - {A1D9D3F0-8C2A-9A1D-A376-2CACFB10AB72} - (no file)
O23 - Service: Ad-Aware 2007 Service (aawservice) - Lavasoft - C:\Program2\Lavasoft\Ad-Aware 2007\aawservice.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\1150\Intel 32\IDriverT.exe
O23 - Service: McAfee AntiSpyware Service - McAfee, Inc. - c:\progra~1\mcafee\mcafee antispyware\massrv.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: McAfee Personal Firewall Service (MpfService) - McAfee Corporation - C:\PROGRA~1\McAfee.com\PERSON~1\MpfService.exe
O23 - Service: McAfee SpamKiller Server (MskService) - McAfee Inc. - C:\PROGRA~1\McAfee\SPAMKI~1\MSKSrvr.exe
O23 - Service: Norton Unerase Protection (NProtectService) - Symantec Corporation - C:\Program Files\Norton Utilities\NPROTECT.EXE
O23 - Service: NVIDIA Display Driver Service (NVSvc) - NVIDIA Corporation - C:\WINDOWS\System32\nvsvc32.exe
O23 - Service: Speed Disk service - Symantec Corporation - C:\Program Files\Speed Disk\nopdb.exe
O23 - Service: StyleXPService - Unknown owner - C:\Program Files\TGTSoft\StyleXP\StyleXPService.exe
--
End of file - 10464 bytes

Ok.We need to download ComboFix.exe. This will give me a better view to the files that are running and also the ones that are hidden on your computer.
Please visit this webpage for download links, and instructions for running ComboFix

When the tool is finished, it will produce a report for you. Please copy and paste the "C:\ComboFix.txt" along with a new 'HijackThis' log so that we can continue to do any further cleaning that your system may require.
Caution: Never run and remove files with Combofix unless supervised by a qualified security analyst who is experienced in the use of Combofix. Mal use can cause serious computer problems
NOTE: Combofix prevents autorun of all CDs, floppies and USB devices to assist with malware removal & increase security. If this is an issue or makes it difficult for you - please let me know.

=======================================
Please download SDFix from here and save it to your desktop
Double click SDFix.exe and it will extract the files to %systemdrive%
(Drive that contains the Windows Directory, typically C:\SDFix)
Please then reboot your computer in Safe Mode by doing the following :
Restart your computer
After hearing your computer beep once during startup, but before the Windows icon appears, tap the F8 key continually;
Instead of Windows loading as normal, the Advanced Options Menu should appear;
Select the first option, to run Windows in Safe Mode, then press Enter.
Choose your usual account.
Open the extracted SDFix folder and double click RunThis.bat to start the script.
Type Y to begin the cleanup process.
It will remove any Trojan Services and Registry Entries that it finds then prompt you to press any key to Reboot.
Press any Key and it will restart the PC.
When the PC restarts the Fixtool will run again and complete the removal process then display Finished, press any key to end the script and load your desktop icons.
Once the desktop icons load the SDFix report will open on screen and also save into the SDFix folder as Report.txt
(Report.txt will also be copied to Clipboard ready for posting back on the forum).
Please copy and paste that log in your next reply.