If I click the link to any search engine I will be redirected to an ad for apartments, porn, etc. Sometimes I will be redirected even if I copy and paste the link.

Here is my Hijack log:

Logfile of Trend Micro HijackThis v2.0.2
Scan saved at 7:52:06 AM, on 5/12/2009
Platform: Windows XP SP2 (WinNT 5.01.2600)
MSIE: Internet Explorer v7.00 (7.00.6000.16705)
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:\Program Files\Intel\Wireless\Bin\EvtEng.exe
C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
C:\Program Files\Intel\Wireless\Bin\WLKeeper.exe
C:\Program Files\Intel\Wireless\Bin\ZcfgSvc.exe
C:\WINDOWS\Explorer.EXE
C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
C:\Program Files\Alwil Software\Avast4\ashServ.exe
C:\WINDOWS\system32\spoolsv.exe
C:\Program Files\Common Files\LogiShrd\LVMVFM\LVPrcSrv.exe
C:\PROGRA~1\Intel\Wireless\Bin\1XConfig.exe
C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
C:\WINDOWS\eHome\ehRecvr.exe
C:\WINDOWS\eHome\ehSched.exe
C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
C:\WINDOWS\system32\LxrJD31s.exe
C:\Program Files\Common Files\Microsoft Shared\VS7DEBUG\MDM.EXE
C:\Program Files\Dell\NICCONFIGSVC\NICCONFIGSVC.exe
C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
C:\WINDOWS\system32\svchost.exe
C:\Program Files\Viewpoint\Common\ViewpointService.exe
C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
C:\WINDOWS\system32\dllhost.exe
C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
C:\WINDOWS\ehome\ehtray.exe
C:\WINDOWS\system32\hkcmd.exe
C:\WINDOWS\system32\igfxpers.exe
C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe
C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe
C:\WINDOWS\system32\igfxsrvc.exe
C:\WINDOWS\stsystra.exe
C:\Program Files\Dell\Media Experience\DMXLauncher.exe
C:\Program Files\Dell\QuickSet\quickset.exe
C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe
C:\WINDOWS\System32\DLA\DLACTRLW.EXE
C:\Program Files\Dell Photo AIO Printer 942\dlbubmgr.exe
C:\Program Files\Dell Photo AIO Printer 942\memcard.exe
C:\Program Files\Microsoft IntelliPoint\point32.exe
C:\WINDOWS\eHome\ehmsas.exe
C:\Program Files\iTunes\iTunesHelper.exe
C:\WINDOWS\System32\svchost.exe
C:\Program Files\Dell Photo AIO Printer 942\dlbubmon.exe
C:\Program Files\Common Files\LogiShrd\LComMgr\Communications_Helper.exe
C:\Program Files\Logitech\QuickCam\Quickcam.exe
C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
C:\Program Files\NetWaiting\netWaiting.exe
C:\WINDOWS\system32\ctfmon.exe
C:\Program Files\DellSupport\DSAgnt.exe
C:\Program Files\iPod\bin\iPodService.exe
C:\Program Files\Digital Line Detect\DLG.exe
C:\Program Files\Common Files\Logishrd\LQCVFX\COCIManager.exe
C:\WINDOWS\system32\wuauclt.exe
C:\Program Files\Internet Explorer\iexplore.exe
C:\Program Files\Common Files\Microsoft Shared\Windows Live\WLLoginProxy.exe
C:\Program Files\Java\jre1.5.0_10\bin\jucheck.exe
C:\Program Files\Trend Micro\HijackThis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = MSN.com
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = Live Search
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = Live Search
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = MSN.com
O2 - BHO: (no name) - {02478D38-C3F9-4efb-9B51-7695ECA05670} - (no file)
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Common Files\Adobe\Acrobat\ActiveX\AcroIEHelper.dll
O2 - BHO: DriveLetterAccess - {5CA3D70E-1895-11CF-8E15-001234567890} - C:\WINDOWS\System32\DLA\DLASHX_W.DLL
O2 - BHO: SSVHelper Class - {761497BB-D6F0-462C-B6EB-D4DAF1D92D43} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O2 - BHO: (no name) - {7E853D72-626A-48EC-A868-BA8D5E23E045} - (no file)
O2 - BHO: Windows Live Sign-in Helper - {9030D464-4C02-4ABF-8ECC-5164760863C6} - C:\Program Files\Common Files\Microsoft Shared\Windows Live\WindowsLiveLogin.dll
O2 - BHO: GoogleAFE - {CA6319C0-31B7-401E-A518-A07C3DB8F777} - c:\Program Files\GoogleAFE\GoogleAE.dll
O4 - HKLM\..\Run: [ehTray] C:\WINDOWS\ehome\ehtray.exe
O4 - HKLM\..\Run: [igfxtray] C:\WINDOWS\system32\igfxtray.exe
O4 - HKLM\..\Run: [igfxhkcmd] C:\WINDOWS\system32\hkcmd.exe
O4 - HKLM\..\Run: [igfxpers] C:\WINDOWS\system32\igfxpers.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] "C:\Program Files\Java\jre1.5.0_10\bin\jusched.exe"
O4 - HKLM\..\Run: [SynTPEnh] C:\Program Files\Synaptics\SynTP\SynTPEnh.exe
O4 - HKLM\..\Run: [IntelWireless] C:\Program Files\Intel\Wireless\Bin\ifrmewrk.exe /tf Intel PROSet/Wireless
O4 - HKLM\..\Run: [SigmatelSysTrayApp] stsystra.exe
O4 - HKLM\..\Run: [DMXLauncher] C:\Program Files\Dell\Media Experience\DMXLauncher.exe
O4 - HKLM\..\Run: [Dell QuickSet] C:\Program Files\Dell\QuickSet\quickset.exe
O4 - HKLM\..\Run: [ISUSPM Startup] "C:\Program Files\Common Files\InstallShield\UpdateService\isuspm.exe" -startup
O4 - HKLM\..\Run: [ISUSScheduler] "C:\Program Files\Common Files\InstallShield\UpdateService\issch.exe" -start
O4 - HKLM\..\Run: [DLA] C:\WINDOWS\System32\DLA\DLACTRLW.EXE
O4 - HKLM\..\Run: [Dell Photo AIO Printer 942] "C:\Program Files\Dell Photo AIO Printer 942\dlbubmgr.exe"
O4 - HKLM\..\Run: [DellMCM] "C:\Program Files\Dell Photo AIO Printer 942\memcard.exe"
O4 - HKLM\..\Run: [IntelliPoint] "C:\Program Files\Microsoft IntelliPoint\point32.exe"
O4 - HKLM\..\Run: [Adobe Reader Speed Launcher] "C:\Program Files\Adobe\Reader 8.0\Reader\Reader_sl.exe"
O4 - HKLM\..\Run: [dscactivate] "C:\Program Files\Dell Support Center\gs_agent\custom\dsca.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [LogitechCommunicationsManager] "C:\Program Files\Common Files\LogiShrd\LComMgr\Communications_Helper.exe"
O4 - HKLM\..\Run: [LogitechQuickCamRibbon] "C:\Program Files\Logitech\QuickCam\Quickcam.exe" /hide
O4 - HKLM\..\Run: [Ad-Watch] C:\Program Files\Lavasoft\Ad-Aware\AAWTray.exe
O4 - HKLM\..\Run: [avast!] C:\PROGRA~1\ALWILS~1\Avast4\ashDisp.exe
O4 - HKCU\..\Run: [ModemOnHold] C:\Program Files\NetWaiting\netWaiting.exe
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - HKCU\..\Run: [DellSupport] "C:\Program Files\DellSupport\DSAgnt.exe" /startup
O4 - Global Startup: Adobe Gamma Loader.lnk = C:\Program Files\Common Files\Adobe\Calibration\Adobe Gamma Loader.exe
O4 - Global Startup: Digital Line Detect.lnk = ?
O8 - Extra context menu item: E&xport to Microsoft Excel - res://C:\PROGRA~1\MICROS~2\OFFICE11\EXCEL.EXE/3000
O9 - Extra button: (no name) - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra 'Tools' menuitem: Sun Java Console - {08B0E5C0-4FCB-11CF-AAA5-00401C608501} - C:\Program Files\Java\jre1.5.0_10\bin\ssv.dll
O9 - Extra button: Research - {92780B25-18CC-41C8-B9BE-3C9C571A8263} - C:\PROGRA~1\MICROS~2\OFFICE11\REFIEBAR.DLL
O9 - Extra button: (no name) - {CD67F990-D8E9-11d2-98FE-00C0F0318AFE} - (no file)
O9 - Extra button: (no name) - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.exe
O9 - Extra 'Tools' menuitem: @xpsp3res.dll,-20001 - {e2e2dd38-d088-4134-82b7-f2ba38496583} - C:\WINDOWS\Network Diagnostic\xpnetdiag.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: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - http://fpdownload2.macromedia.com/ge...sh/swflash.cab
O17 - HKLM\System\CCS\Services\Tcpip\..\{BDA61F15-0774-417E-B7C2-235C6138E3C7}: NameServer = 85.255.112.102;85.255.112.168
O17 - HKLM\System\CCS\Services\Tcpip\..\{F870F9DF-D6E4-4C96-A42B-FAD77BDFC968}: NameServer = 85.255.112.102;85.255.112.168
O23 - Service: Adobe LM Service - Unknown owner - C:\Program Files\Common Files\Adobe Systems Shared\Service\Adobelmsvc.exe
O23 - Service: Apple Mobile Device - Apple, Inc. - C:\Program Files\Common Files\Apple\Mobile Device Support\bin\AppleMobileDeviceService.exe
O23 - Service: avast! iAVS4 Control Service (aswUpdSv) - ALWIL Software - C:\Program Files\Alwil Software\Avast4\aswUpdSv.exe
O23 - Service: avast! Antivirus - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashServ.exe
O23 - Service: avast! Mail Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashMaiSv.exe
O23 - Service: avast! Web Scanner - ALWIL Software - C:\Program Files\Alwil Software\Avast4\ashWebSv.exe
O23 - Service: dlbu_device - Dell - C:\WINDOWS\system32\dlbucoms.exe
O23 - Service: DSBrokerService - Unknown owner - C:\Program Files\DellSupport\brkrsvc.exe
O23 - Service: EvtEng - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\EvtEng.exe
O23 - Service: InstallDriver Table Manager (IDriverT) - Macrovision Corporation - C:\Program Files\Common Files\InstallShield\Driver\11\Intel 32\IDriverT.exe
O23 - Service: iPod Service - Apple Inc. - C:\Program Files\iPod\bin\iPodService.exe
O23 - Service: Lavasoft Ad-Aware Service - Lavasoft - C:\Program Files\Lavasoft\Ad-Aware\AAWService.exe
O23 - Service: LVCOMSer - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVCOMSER\LVComSer.exe
O23 - Service: Process Monitor (LVPrcSrv) - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\LVMVFM\LVPrcSrv.exe
O23 - Service: LVSrvLauncher - Logitech Inc. - C:\Program Files\Common Files\LogiShrd\SrvLnch\SrvLnch.exe
O23 - Service: Lexar JD31 (LxrJD31s) - Unknown owner - C:\WINDOWS\SYSTEM32\LxrJD31s.exe
O23 - Service: NICCONFIGSVC - Dell Inc. - C:\Program Files\Dell\NICCONFIGSVC\NICCONFIGSVC.exe
O23 - Service: RegSrvc - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\RegSrvc.exe
O23 - Service: Spectrum24 Event Monitor (S24EventMonitor) - Intel Corporation - C:\Program Files\Intel\Wireless\Bin\S24EvMon.exe
O23 - Service: Viewpoint Manager Service - Viewpoint Corporation - C:\Program Files\Viewpoint\Common\ViewpointService.exe
O23 - Service: WLANKEEPER - Intel® Corporation - C:\Program Files\Intel\Wireless\Bin\WLKeeper.exe

--
End of file - 10678 bytes