particular file giving me trouble

I dl'ed Hijackthis and now I will now post my log.

Logfile of HijackThis v1.97.7
Scan saved at 1:02:54 PM, on 4/14/2004
Platform: Windows 2000 SP4 (WinNT 5.00.2195)
MSIE: Internet Explorer v5.00 SP4 (5.00.2920.0000)

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Norton SystemWorks\Norton Antivirus\navapsvc.exe
C:\PROGRA~1\NORTON~1\NORTON~2\NPROTECT.EXE
C:\WINDOWS\System32\nvsvc32.exe
C:\WINDOWS\system32\regsvc.exe
C:\Program Files\Norton SystemWorks\Norton Antivirus\SAVScan.exe
C:\WINDOWS\system32\MSTask.exe
C:\PROGRA~1\NORTON~1\NORTON~2\SPEEDD~1\NOPDB.EXE
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\System32\WBEM\WinMgmt.exe
C:\WINDOWS\system32\svchost.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\SymTray.exe
C:\WINDOWS\system32\RunDll32.exe
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Norton SystemWorks\Password Manager\AcctMgr.exe
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\wt\updater\wcmdmgr.exe
C:\WINDOWS\system32\P2P Networking\P2P Networking.exe
C:\Program Files\Handspring\Hotsync.exe
C:\Program Files\Belkin\Nostromo\nost_LM.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\AIM\aim.exe
C:\My Documents\HijackThis.exe

R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://www.adamswells.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Microsoft Internet Explorer provided by AdamsWells
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Local Page = C:\WINDOWS\SYSTEM\blank.htm
O2 - BHO: (no name) - {000020DD-C72E-4113-AF77-DD56626C6C42} - C:\WINDOWS\twaintec.dll
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\PROGRAM FILES\ADOBE\ACROBAT 5.0\READER\ACTIVEX\ACROIEHELPER.OCX
O2 - BHO: (no name) - {46FD26BF-9130-41BD-D234-7C4E0AADECAA} - (no file)
O2 - BHO: (no name) - {71ED4FBA-4024-4bbe-91DC-9704C93F453E} - (no file)
O2 - BHO: (no name) - {83DE62E0-5805-11D8-9B25-00E04C60FAF2} - C:\WINDOWS\2_0_1browserhelper2.dll
O2 - BHO: (no name) - {9C691A33-7DDA-4C2F-BE4C-C176083F35CF} - C:\WINDOWS\Downloaded Program Files\bridge.dll (file missing)
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton SystemWorks\Norton Antivirus\NavShExt.dll
O2 - BHO: Core Library - {D4D505DF-D582-400c-91B6-84921012AFE3} - C:\WINDOWS\system32\pdfupd.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [SystemTray] SysTray.Exe
O4 - HKLM\..\Run: [Synchronization Manager] mobsync.exe /logon
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\System32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [nwiz] nwiz.exe /install
O4 - HKLM\..\Run: [Cmaudio] RunDll32 cmicnfg.cpl,CMICtrlWnd
O4 - HKLM\..\Run: [SymTray - Norton SystemWorks] C:\Program Files\Common Files\Symantec Shared\SymTray.exe SetReg
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [AcctMgr] C:\Program Files\Norton SystemWorks\Password Manager\AcctMgr.exe /startup
O4 - HKLM\..\Run: [wcmdmgr] C:\WINDOWS\wt\updater\wcmdmgrl.exe -launch
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [P2P Networking] C:\WINDOWS\system32\P2P Networking\P2P Networking.exe /AUTOSTART
O4 - HKLM\..\Run: [RunDLL] rundll32.exe "C:\WINDOWS\Downloaded Program Files\bridge.dll",Load
O4 - HKLM\..\Run: [Popup Defence Updater] regsvr32 /s C:\WINDOWS\system32\pdfupd.dll
O4 - HKCU\..\Run: [HXIUL.EXE] C:\Program Files\Alset\HelpExpress\Logan\HXIUL.EXE
O4 - HKCU\..\Run: [HXDL.EXE] C:\Program Files\Alset\HelpExpress\Logan\HXDL.EXE -from="MANIFEST.DAT" -to="MANIFEST.DAT"
O4 - HKLM\..\RunOnce: [SymTray - Norton SystemWorks] C:\Program Files\Common Files\Symantec Shared\Symtrdr.exe
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: HotSync Manager.lnk = C:\Program Files\Handspring\HOTSYNC.EXE
O4 - Global Startup: Loadout Manager.lnk = C:\Program Files\Belkin\Nostromo\nost_LM.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: PowerReg Scheduler V3.exe
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: Yahoo! Messenger (HKLM)
O9 - Extra button: AIM (HKLM)
O9 - Extra button: Messenger (HKLM)
O9 - Extra 'Tools' menuitem: MSN Messenger Service (HKLM)
O12 - Plugin for .spop: C:\PROGRA~1\INTERN~1\Plugins\NPDocBox.dll
O16 - DPF: ConferenceRoom Java Client - http://java.irc.liveharmony.org:8080/java/cr.cab
O16 - DPF: {166B1BCA-3F9C-11CF-8075-444553540000} (Shockwave ActiveX Control) - http://download.macromedia.com/pub/shockwave/cabs/director/sw.cab
O16 - DPF: {1D6711C8-7154-40BB-8380-3DEA45B69CBF} (Web P2P Installer) -
O16 - DPF: {27527D31-447B-11D5-A46E-0001023B4289} (CoGSManager Class) - http://gamingzone.ubisoft.com/dev/packages/GSManager.cab
O16 - DPF: {33564D57-0000-0010-8000-00AA00389B71} - http://download.microsoft.com/download/F/6/E/F6E491A6-77E1-4E20-9F5F-94901338C922/wmv9VCM.CAB
O16 - DPF: {90C9629E-CD32-11D3-BBFB-00105A1F0D68} (InstallShield International Setup Player) - http://www.installengine.com/engine/isetup.cab
O16 - DPF: {9A19966F-AE0E-4699-8CCE-9B6F5F1C352C} (NPKXSite Control) - http://211.172.247.223/nprotect/npkx/npkxsite.cab
O16 - DPF: {9C691A33-7DDA-4C2F-BE4C-C176083F35CF} (brdg Class) - http://www2.flingstone.com/cab/2000XP/CDTInc/bridge.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab
O16 - DPF: {E7DBFB6C-113A-47CF-B278-F5C6AF4DE1BD} - http://download.abacast.com/download/files/abasetup144.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{07F215F6-DD0C-4CDB-9951-879D01F1463B}: NameServer = 66.170.40.10 66.170.40.11
O17 - HKLM\System\CS1\Services\Tcpip\..\{07F215F6-DD0C-4CDB-9951-879D01F1463B}: NameServer = 66.170.40.10 66.170.40.11

You've got several problems there. To begin with, you're gonna hafta get rid of Twaintec. See This Topic.