Help deleting a file that is wrte protected or in use

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Hi. I've posted here before about this .dll file. Finally I've located it an it doens't seem to disappear anymore. BUt when I try to delete it with HJT and then del it from system32 it says that it is write protected or in use. Does anyone know how to get around this? Thanks. Here's my HJT log. Its the O20 wdmkan.dll

Logfile of HijackThis v1.98.1
Scan saved at 1:08:31 PM, on 11/13/2004
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\csrss.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\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\DefWatch.exe
C:\Program Files\Symantec_Client_Security\Symantec AntiVirus\Rtvscan.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\alg.exe
C:\WINDOWS\system32\wscntfy.exe
C:\WINDOWS\Explorer.EXE
C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
C:\Program Files\Microsoft Hardware\Keyboard\type32.exe
C:\Program Files\Microsoft Hardware\Mouse\point32.exe
C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
C:\WINDOWS\System32\tbctray.exe
C:\Program Files\Messenger\msmsgs.exe
C:\documents and settings\ramon lee\my documents\pocketpc\WCESCOMM.EXE
C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe
C:\Program Files\Hewlett-Packard\AiO\hp officejet g series\Bin\hpoavn07.exe
C:\PROGRA~1\HEWLET~1\AiO\Shared\Bin\hpoevm07.exe
C:\WINDOWS\system32\hpoipm07.exe
C:\Program Files\Hewlett-Packard\AiO\Shared\bin\hpOSTS07.exe
C:\Program Files\Hewlett-Packard\AiO\Shared\bin\hpOFXM07.exe
C:\Program Files\AT&T\WnClient\Programs\WNConnect.exe
C:\PROGRA~1\AT&T\WnClient\Programs\WNCSMS~1.EXE
C:\Program Files\Internet Explorer\iexplore.exe
C:\hijackthis\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://www.att.net/ie4/search/index.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = https://gmail.google.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://www.att.net
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = https://gmail.google.com
F2 - REG:system.ini: UserInit=C:\WINDOWS\System32\Userinit.exe
O2 - BHO: AcroIEHlprObj Class - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 6.0\Reader\ActiveX\AcroIEHelper.dll
O2 - BHO: (no name) - {243B17DE-77C7-46BF-B94B-0B5F309A0E64} - C:\Program Files\Microsoft Money\System\mnyside.dll
O4 - HKLM\..\Run: [vptray] C:\PROGRA~1\SYMANT~1\SYMANT~1\vptray.exe
O4 - HKLM\..\Run: [IntelliType] "C:\Program Files\Microsoft Hardware\Keyboard\type32.exe"
O4 - HKLM\..\Run: [POINTER] point32.exe
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [mmtask] C:\Program Files\MUSICMATCH\MUSICMATCH Jukebox\mmtask.exe
O4 - HKLM\..\Run: [TraySantaCruz] C:\WINDOWS\System32\tbctray.exe
O4 - HKCU\..\Run: [MSMSGS] "C:\Program Files\Messenger\msmsgs.exe" /background
O4 - HKCU\..\Run: [H/PC Connection Agent] "C:\documents and settings\ramon lee\my documents\pocketpc\WCESCOMM.EXE"
O4 - HKCU\..\Run: [SpySweeper] "C:\Program Files\Webroot\Spy Sweeper\SpySweeper.exe" /0
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: HPAiODevice(hp officejet g series) - 1.lnk = C:\Program Files\Hewlett-Packard\AiO\hp officejet g series\Bin\hpoavn07.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
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:\documents and settings\ramon lee\my documents\pocketpc\inetrepl.dll
O9 - Extra button: (no name) - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - c:\documents and settings\ramon lee\my documents\pocketpc\inetrepl.dll
O9 - Extra 'Tools' menuitem: Create Mobile Favorite... - {2EAF5BB2-070F-11D3-9307-00C04FAE2D4F} - c:\documents and settings\ramon lee\my documents\pocketpc\inetrepl.dll
O9 - Extra button: AIM - {AC9E2541-2814-11d5-BC6D-00B0D0A1DE45} - C:\Program Files\AIM95\aim.exe
O9 - Extra button: MoneySide - {E023F504-0C5A-4750-A1E7-A9046DEA8A21} - C:\Program Files\Microsoft Money\System\mnyside.dll
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: {31932A5C-9234-4377-A920-72E7DD340DB4} (Snapfish File Upload ActiveX Control) - http://www.snapfish.com/SnapfishUpload.cab
O16 - DPF: {41F17733-B041-4099-A042-B518BB6A408C} - http://a1540.g.akamai.net/7/1540/52/20030530/qtinstall.info.apple.com/bonnie/us/win/QuickTimeInstaller.exe
O17 - HKLM\System\CCS\Services\Tcpip\..\{8F7BBA8D-3C32-46A4-9249-7C712F71B012}: NameServer = 204.127.129.3 12.102.244.1
O20 - AppInit_DLLs: C:\WINDOWS\System32\wdmkan.dll

SpywareShooter

Boot into Safe Mode (press F8 at the BIOS screen when booting) and delete the file.