Bridge.dll error please help me here is my hijackthis log file!Logfile of HijackThis v1.97.7
Scan saved at 1:34:15 AM, on 5/8/2004
Platform: Windows XP SP2, v.2082 (WinNT 5.01.2600)
MSIE: Internet Explorer v6.00 SP2 (6.00.2900.2082)

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:\Program Files\Common Files\Symantec Shared\ccSetMgr.exe
C:\Program Files\Common Files\Symantec Shared\ccEvtMgr.exe
C:\WINDOWS\system32\spoolsv.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Common Files\Symantec Shared\ccApp.exe
C:\Program Files\Elaborate Bytes\DVD Region Killer\RegKillTray.exe
C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
C:\WINDOWS\system32\CTHELPER.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\MSN Messenger\msnmsgr.exe
C:\Program Files\AdsBlock\adsblock.exe
C:\WINDOWS\webshots.scr
C:\WINDOWS\system32\CTSvcCDA.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE
C:\Program Files\Norton AntiVirus\navapsvc.exe
C:\Program Files\Norton AntiVirus\AdvTools\NPROTECT.EXE
C:\WINDOWS\system32\nvsvc32.exe
C:\Program Files\Norton AntiVirus\SAVScan.exe
C:\Program Files\Common Files\Symantec Shared\CCPD-LC\symlcsvc.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Windows Media Player\wmplayer.exe
C:\Program Files\hijackthis1977\HijackThis.exe

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://mysearchnow.com/searchbar.html
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page = http://dome.newman.unimelb.edu.au/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://mysearchnow.com/searchbar.html
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,AutoConfigURL = http://www.newman.unimelb.edu.au/proxy/proxy.pac
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {7559B76E-0222-4d77-9499-CCE9EB4EDC2F} - (no file)
O2 - BHO: (no name) - {904E1A45-A65E-5165-3FD1-B52C92705037} - (no file)
O2 - BHO: (no name) - {9C691A33-7DDA-4C2F-BE4C-C176083F35CF} - C:\WINDOWS\system32\bridge.dll (file missing)
O2 - BHO: NAV Helper - {BDF3E430-B101-42AD-A544-FADC6B084872} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\system32\msdxm.ocx
O3 - Toolbar: Norton AntiVirus - {42CDD1BF-3FFB-4238-8AD1-7859DF00B1D6} - C:\Program Files\Norton AntiVirus\NavShExt.dll
O4 - HKLM\..\Run: [BluetoothAuthenticationAgent] rundll32.exe bthprops.cpl,,BluetoothAuthenticationAgent
O4 - HKLM\..\Run: [ccApp] "C:\Program Files\Common Files\Symantec Shared\ccApp.exe"
O4 - HKLM\..\Run: [NAV CfgWiz] C:\Program Files\Common Files\Symantec Shared\CfgWiz.exe /GUID NAV /CMDLINE "REBOOT"
O4 - HKLM\..\Run: [Advanced Tools Check] C:\PROGRA~1\NORTON~1\AdvTools\ADVCHK.EXE
O4 - HKLM\..\Run: [NvCplDaemon] RUNDLL32.EXE C:\WINDOWS\system32\NvCpl.dll,NvStartup
O4 - HKLM\..\Run: [NeroCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - HKLM\..\Run: [RegKillElbyCheck] "C:\Program Files\Elaborate Bytes\DVD Region Killer\ElbyCheck.exe" /L RegKill
O4 - HKLM\..\Run: [RegKillTray] "C:\Program Files\Elaborate Bytes\DVD Region Killer\RegKillTray.exe"
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
O4 - HKLM\..\Run: [WINDVDPatch] CTHELPER.EXE
O4 - HKLM\..\Run: [Jet Detection] "C:\Program Files\Creative\SBLive\PROGRAM\ADGJDet.exe"
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [MessengerPlus2] "C:\Program Files\Messenger Plus! 2\MsgPlus.exe"
O4 - HKLM\..\Run: [RunDLL] rundll32.exe "C:\WINDOWS\system32\bridge.dll",Load
O4 - HKLM\..\Run: [systray] C:\WINDOWS\system32\a.exe
O4 - HKCU\..\Run: [msnmsgr] "C:\Program Files\MSN Messenger\msnmsgr.exe" /background
O4 - Startup: AdsGone.lnk = ?
O4 - Startup: Webshots.lnk = C:\Program Files\Webshots\Launcher.exe
O4 - Global Startup: AdsBlock 2004.lnk = C:\Program Files\AdsBlock\adsblock.exe
O4 - Global Startup: IDW Logging Tool.lnk = C:\WINDOWS\system32\idwlog.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office10\OSA.EXE
O8 - Extra context menu item: &Maintain Block List... - C:\PROGRA~1\AdShield\AdShield\maintain.htm
O8 - Extra context menu item: Add to &Block List... - C:\PROGRA~1\AdShield\AdShield\suppress.htm
O8 - Extra context menu item: Add to &Exclude List... - C:\PROGRA~1\AdShield\AdShield\restrict.htm
O8 - Extra context menu item: AdShield Option &Settings... - C:\PROGRA~1\AdShield\AdShield\settings.htm
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\Office10\EXCEL.EXE/3000
O9 - Extra 'Tools' menuitem: Sun Java Console (HKLM)
O9 - Extra button: Related (HKLM)
O9 - Extra 'Tools' menuitem: Show &Related Links (HKLM)
O9 - Extra button: AdShield (HKCU)
O12 - Plugin for .spop: C:\Program Files\Internet Explorer\Plugins\NPDocBox.dll

Have HJT fix the following entry:

O4 - HKLM\..\Run: [RunDLL] rundll32.exe "C:\WINDOWS\system32\bridge.dll",Load

Reboot and delete the C:\WINDOWS\system32\bridge.dll file if it still exists.

You also have the MySearch parasite; download and run SpyBot and Ad Aware to remove that and other possible "unwanted guests" from ytour system. Download links and instructions for SpyBot and Ad Aware have been posted in many recent threads here; have a look through those threads for more general "malware" removal suggestions as well.