Search for, cool web search, wildtangent

Bonjour,
J'ai un ordi sous xp en réseau qui se connecte par l'ordi hôte sans firewall.
1er probleme: la page récurrente sur IE "search for" et les pop up.
Ensuite: cool web search récurrent également et qui revient même après cwshredder qui soit dit en passant ne trouve pas grand chose alors que ad aware en trouve plein partout.
Puis wildtangent effacé mais lui manque une dll alors m'embête au démarrage (mais bon c'est moins grave ^^).
voilà voilà merci.

le log hijackthis:
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:\WINDOWS\Explorer.EXE
C:\WINDOWS\SOUNDMAN.EXE
C:\Program Files\Generic\USB Card Reader Driver v1.9e3\Disk_Monitor.exe
C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
C:\Program Files\Winamp\winampa.exe
C:\WINDOWS\System32\RUNDLL32.exe
C:\Program Files\imprimanteHP\HP Software Update\HPWuSchd2.exe
C:\Program Files\HP\hpcoretech\hpcmpmgr.exe
C:\Program Files\QuickTime\qttask.exe
C:\WINDOWS\System32\rundll32.exe
C:\Program Files\imprimanteHP\Digital Imaging\bin\hpqtra08.exe
C:\Program Files\HP\hpcoretech\comp\hptskmgr.exe
C:\Program Files\imprimanteHP\Digital Imaging\bin\hpqgalry.exe
C:\WINDOWS\System32\svchost.exe
C:\WINDOWS\System32\wuauclt.exe
C:\Documents and Settings\Sig\Mes documents\Progs\HijackThis.exe
C:\Program Files\Internet Explorer\IEXPLORE.EXE

R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Sig\LOCALS~1\Temp\se.dll/sp.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKCU\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = res://C:\DOCUME~1\Sig\LOCALS~1\Temp\se.dll/sp.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = about:blank
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://GLOBAL.ACER.COM/
R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = about:blank
R1 - HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings,ProxyServer = ftp=192.168.0.1:808;gopher=192.168.0.1:808;http=192.168.0.1:808;https=192.168.0.1:808;socks=192.168.0.1:1080
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,HomeOldSP = about:blank
R0 - HKCU\Software\Microsoft\Internet Explorer\Toolbar,LinksFolderName = Liens
O2 - BHO: (no name) - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files\Adobe\Acrobat 5.0\Reader\ActiveX\AcroIEHelper.ocx
O2 - BHO: (no name) - {53707962-6F74-2D53-2644-206D7942484F} - C:\Program Files\Spybot\Spybot - Search & Destroy\SDHelper.dll
O2 - BHO: (no name) - {C0688021-954F-4B2A-8681-3A817B1A04CB} - C:\WINDOWS\System32\bmcd.dll
O3 - Toolbar: &Radio - {8E718888-423F-11D2-876E-00A0C9082467} - C:\WINDOWS\System32\msdxm.ocx
O4 - HKLM\..\Run: [SoundMan] SOUNDMAN.EXE
O4 - HKLM\..\Run: [Disk Monitor] C:\Program Files\Generic\USB Card Reader Driver v1.9e3\Disk_Monitor.exe
O4 - HKLM\..\Run: [SunJavaUpdateSched] C:\Program Files\Java\j2re1.4.2_01\bin\jusched.exe
O4 - HKLM\..\Run: [WinampAgent] C:\Program Files\Winamp\winampa.exe
O4 - HKLM\..\Run: [WildTangent CDA] RUNDLL32.exe "C:\Program Files\WildTangent\Apps\CDA\cdaEngine0400.dll",cdaEngineMain
O4 - HKLM\..\Run: [HP Software Update] "C:\Program Files\imprimanteHP\HP Software Update\HPWuSchd2.exe"
O4 - HKLM\..\Run: [HP Component Manager] "C:\Program Files\HP\hpcoretech\hpcmpmgr.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [sp] rundll32 C:\DOCUME~1\Sig\LOCALS~1\Temp\se.dll,DllInstall
O4 - HKLM\..\Run: [NeroFilterCheck] C:\WINDOWS\system32\NeroCheck.exe
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: HP Digital Imaging Monitor.lnk = C:\Program Files\imprimanteHP\Digital Imaging\bin\hpqtra08.exe
O4 - Global Startup: Démarrage rapide du logiciel HP Image Zone.lnk = C:\Program Files\imprimanteHP\Digital Imaging\bin\hpqthb08.exe
O9 - Extra button: AIM (HKLM)
O14 - IERESET.INF: START_PAGE_URL=http://GLOBAL.ACER.COM/
O16 - DPF: {02BF25D5-8C17-4B23-BC80-D3488ABDDC6B} (QuickTime Object) - http://www.apple.com/qtactivex/qtplugin.cab
O16 - DPF: {D27CDB6E-AE6D-11CF-96B8-444553540000} (Shockwave Flash Object) - https://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab