Windows Explorer has encountered a problem

Hi,

I recently have a problem whenever i open my computer
when i navigate to my C:H or J Local Disk in a few minutes
i get an error messege like "Windows Explorer has encountered a problem and needs to close. We are sorry for the inconvenience"

I've taken these steps to solve this problem but it still happens;-
- AVG Free Edition
- AVG Anti-Spyware
- SpyBot SD
- Ad-Aware

here is my hjt log

Logfile of HijackThis v1.99.1
Scan saved at 9:51:06 AM, on 1/27/2007
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\Ati2evxx.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
C:\WINDOWS\system32\CTsvcCDA.EXE
C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\system32\MsPMSPSv.exe
C:\WINDOWS\system32\Ati2evxx.exe
C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Athan\Athan.exe
C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe
C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe
C:\WINDOWS\RavMonE.exe
H:\BitComet\BitComet.exe
C:\Program Files\Free Download Manager\fdm.exe
C:\PROGRA~1\MICROS~3\wcescomm.exe
C:\PROGRA~1\MICROS~3\rapimgr.exe
C:\Program Files\Messenger\msmsgs.exe
C:\PROGRA~1\Yahoo!\MESSEN~1\ymsgr_tray.exe
C:\Program Files\Microsoft ActiveSync\WCESMgr.exe
C:\Program Files\Microsoft Office\Office10\OUTLOOK.EXE
C:\PROGRA~1\MOZILL~1\FIREFOX.EXE
C:\WINDOWS\explorer.exe
C:\Documents and Settings\Master\Desktop\temp\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,SearchAssistant = http://search.bearshare.com/sidebar.html?src=ssb
R3 - URLSearchHook: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Yahoo! Toolbar Helper - {02478D38-C3F9-4EFB-9B51-7695ECA05670} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O2 - BHO: FDMIECookiesBHO Class - {CC59E0F9-7E43-44FA-9FAA-8377850BF205} - C:\Program Files\Free Download Manager\iefdmcks.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [ATIPTA] C:\Program Files\ATI Technologies\ATI Control Panel\atiptaxx.exe
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Athan] C:\Program Files\Athan\Athan.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\jre1.5.0_03\bin\jusched.exe
O4 - HKLM\..\Run: [AVG7_CC] C:\PROGRA~1\Grisoft\AVGFRE~1\avgcc.exe /STARTUP
O4 - HKLM\..\Run: [!AVG Anti-Spyware] "C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\avgas.exe" /minimized
O4 - HKLM\..\Run: [RavAV] C:\WINDOWS\RavMonE.exe
O4 - HKCU\..\Run: [Yahoo! Pager] "C:\PROGRA~1\Yahoo!\MESSEN~1\YAHOOM~1.EXE" -quiet
O4 - HKCU\..\Run: [BitComet] "H:\BitComet\BitComet.exe"
O4 - HKCU\..\Run: [Free Download Manager] C:\Program Files\Free Download Manager\fdm.exe -autorun
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\PROGRA~1\MICROS~3\wcescomm.exe"
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: Download all with Free Download Manager - file://C:\Program Files\Free Download Manager\dlall.htm
O8 - Extra context menu item: Download selected with Free Download Manager - file://C:\Program Files\Free Download Manager\dlselected.htm
O8 - Extra context menu item: Download with Free Download Manager - file://C:\Program Files\Free Download Manager\dllink.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra button: Create Mobile Favorite - {2EAF5BB1-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - C:\PROGRA~1\MICROS~3\INetRepl.dll
O9 - Extra button: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
O9 - Extra 'Tools' menuitem: Yahoo! Messenger - {E5D12C4E-7B4F-11D3-B5C9-0050045C3C96} - C:\Program Files\Yahoo!\Messenger\YahooMessenger.exe
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: {9A9307A0-7DA4-4DAF-B042-5009F29E09E1} (ActiveScan Installer Class) - http://acs.pandasoftware.com/activescan/as5free/asinst.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{4454090B-376B-4F3F-A140-E7DD1649ADAB}: NameServer = 202.188.0.133 202.188.1.5
O17 - HKLM\System\CS1\Services\Tcpip\..\{4454090B-376B-4F3F-A140-E7DD1649ADAB}: NameServer = 202.188.0.133 202.188.1.5
O23 - Service: Ati HotKey Poller - ATI Technologies Inc. - C:\WINDOWS\system32\Ati2evxx.exe
O23 - Service: ATI Smart - Unknown owner - C:\WINDOWS\system32\ati2sgag.exe
O23 - Service: AVG Anti-Spyware Guard - Anti-Malware Development a.s. - C:\Program Files\Grisoft\AVG Anti-Spyware 7.5\guard.exe
O23 - Service: AVG7 Alert Manager Server (Avg7Alrt) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgamsvr.exe
O23 - Service: AVG7 Update Service (Avg7UpdSvc) - GRISOFT, s.r.o. - C:\PROGRA~1\Grisoft\AVGFRE~1\avgupsvc.exe
O23 - Service: Creative Service for CDROM Access - Creative Technology Ltd - C:\WINDOWS\system32\CTsvcCDA.EXE
O23 - Service: StarWind iSCSI Service (StarWindService) - Rocket Division Software - C:\Program Files\Alcohol Soft\Alcohol 120\StarWind\StarWindService.exe