I suspect to have been infected, probably the issas.exe.
Here is my Hijack log, any advise on what to remove and how to proceed would be greatly appreciated!!

Logfile of HijackThis v1.99.1
Scan saved at 4:28:25 PM, on 11/8/2006
Platform: Windows 2003 SP1 (WinNT 5.02.3790)
MSIE: Internet Explorer v7.00 (7.00.5730.0011)

Running processes:
C:\Program Files (x86)\Network Associates\VirusScan\Avsynmgr.exe
C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
C:\WINDOWS\SysWOW64\HPZipm12.exe
C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe
C:\Program Files (x86)\ASUS WiFi-AP Solo\RtWLan.exe
C:\WINDOWS\SysWOW64\ctfmon.exe
C:\Program Files (x86)\Analog Devices\Core\smax4pnp.exe
C:\Program Files (x86)\Analog Devices\SoundMAX\Smax4.exe
C:\Program Files (x86)\Picasa2\PicasaMediaDetector.exe
C:\Program Files (x86)\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe
C:\Program Files (x86)\QuickTime\qttask.exe
C:\Program Files (x86)\iTunes\iTunesHelper.exe
C:\Program Files (x86)\DesktopEarth\DesktopEarth.exe
C:\Program Files (x86)\SEC\Natural Color\NaturalColorLoad.exe
C:\Program Files (x86)\iPod\bin\iPodService.exe
C:\Program Files\Logitech\SetPoint\x86\SetPoint32.exe
C:\Program Files (x86)\Mozilla Firefox\firefox.exe
C:\Program Files (x86)\Network Associates\VirusScan\VsStat.exe
C:\Program Files (x86)\Network Associates\VirusScan\Avconsol.exe
C:\Program Files (x86)\Network Associates\VirusScan\Webscanx.exe
C:\Documents and Settings\nomdo\Desktop\hijackthis\HijackThis.exe

R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Page_URL = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://go.microsoft.com/fwlink/?LinkId=54896
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://go.microsoft.com/fwlink/?LinkId=54896
R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Start Page = http://go.microsoft.com/fwlink/?LinkId=69157
R1 - HKCU\Software\Microsoft\Internet Connection Wizard,ShellNext = http://update.microsoft.com/
F2 - REG:system.ini: UserInit=userinit
O2 - BHO: Adobe PDF Reader Link Helper - {06849E9F-C8D7-4D59-B87D-784B7D6BE0B3} - C:\Program Files (x86)\Adobe\Acrobat 7.0\ActiveX\AcroIEHelper.dll
O3 - Toolbar: Yahoo! Toolbar - {EF99BD32-C1FB-11D2-892F-0090271D4F88} - C:\Program Files (x86)\Yahoo!\Companion\Installs\cpn\yt.dll
O4 - HKLM\..\Run: [SoundMAXPnP] C:\Program Files (x86)\Analog Devices\Core\smax4pnp.exe
O4 - HKLM\..\Run: [SoundMAX] "C:\Program Files (x86)\Analog Devices\SoundMAX\Smax4.exe" /tray
O4 - HKLM\..\Run: [Picasa Media Detector] "C:\Program Files (x86)\Picasa2\PicasaMediaDetector.exe"
O4 - HKLM\..\Run: [Adobe Photo Downloader] "C:\Program Files (x86)\Adobe\Photoshop Album Starter Edition\3.0\Apps\apdproxy.exe"
O4 - HKLM\..\Run: [QuickTime Task] "C:\Program Files (x86)\QuickTime\qttask.exe" -atboottime
O4 - HKLM\..\Run: [iTunesHelper] "C:\Program Files (x86)\iTunes\iTunesHelper.exe"
O4 - HKLM\..\Run: [RegEasy.exe] "C:\Program Files (x86)\RegistryEasy\RegEasy.exe"
O4 - HKCU\..\Run: [ctfmon.exe] C:\WINDOWS\system32\ctfmon.exe
O4 - Global Startup: Adobe Reader Speed Launch.lnk = C:\Program Files (x86)\Adobe\Acrobat 7.0\Reader\reader_sl.exe
O4 - Global Startup: ASUS WiFi-AP Solo.lnk = ?
O4 - Global Startup: DesktopEarth AutoStart.lnk = ?
O4 - Global Startup: Logitech SetPoint.lnk = ?
O4 - Global Startup: Microsoft Office.lnk = C:\Program Files (x86)\Microsoft Office\Office\OSA9.EXE
O4 - Global Startup: NaturalColorLoad.lnk = ?
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
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O10 - Unknown file in Winsock LSP: c:\windows\system32\nvappfilter.dll
O11 - Options group: [INTERNATIONAL] International*
O16 - DPF: {6414512B-B978-451D-A0D8-FCFDF33E833C} (WUWebControl Class) - http://update.microsoft.com/windowsupdate/…b?1162653614156
O20 - Winlogon Notify: dimsntfy - C:\WINDOWS\SYSTEM32\dimsntfy.dll
O20 - Winlogon Notify: EFS - C:\WINDOWS\SYSTEM32\sclgntfy.dll
O23 - Service: AVSync Manager (AvSynMgr) - Unknown owner - C:\Program Files (x86)\Network Associates\VirusScan\Avsynmgr.exe
O23 - Service: Logical Disk Manager Administrative Service (dmadmin) - Unknown owner - C:\WINDOWS\System32\dmadmin.exe (file missing)
O23 - Service: Event Log (Eventlog) - Unknown owner - C:\WINDOWS\system32\services.exe (file missing)
O23 - Service: ForceWare Intelligent Application Manager (IAM) - Unknown owner - C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcAppFlt.exe
O23 - Service: Forceware Web Interface (ForcewareWebInterface) - Unknown owner - C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\Apache Group\Apache2\bin\apache.exe" -k runservice (file missing)
O23 - Service: HTTP SSL (HTTPFilter) - Unknown owner - C:\WINDOWS\System32\lsass.exe (file missing)
O23 - Service: IMAPI CD-Burning COM Service (ImapiService) - Unknown owner - C:\WINDOWS\system32\imapi.exe (file missing)
O23 - Service: iPod Service - Apple Computer, Inc. - C:\Program Files (x86)\iPod\bin\iPodService.exe
O23 - Service: McShield - Unknown owner - C:\Program Files (x86)\Common Files\Network Associates\McShield\Mcshield.exe
O23 - Service: Distributed Transaction Coordinator (MSDTC) - Unknown owner - C:\WINDOWS\system32\msdtc.exe (file missing)
O23 - Service: Net Logon (Netlogon) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: ForceWare IP service (nSvcIp) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcIp.exe
O23 - Service: ForceWare user log service (nSvcLog) - NVIDIA Corporation - C:\Program Files (x86)\NVIDIA Corporation\NetworkAccessManager\bin\nSvcLog.exe
O23 - Service: NT LM Security Support Provider (NtLmSsp) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: NVIDIA Display Driver Service (NVSvc) - Unknown owner - C:\WINDOWS\system32\nvsvc64.exe (file missing)
O23 - Service: Plug and Play (PlugPlay) - Unknown owner - C:\WINDOWS\system32\services.exe (file missing)
O23 - Service: Pml Driver HPZ12 - HP - C:\WINDOWS\system32\HPZipm12.exe
O23 - Service: IPSEC Services (PolicyAgent) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Protected Storage (ProtectedStorage) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Remote Desktop Help Session Manager (RDSessMgr) - Unknown owner - C:\WINDOWS\system32\sessmgr.exe (file missing)
O23 - Service: Security Accounts Manager (SamSs) - Unknown owner - C:\WINDOWS\system32\lsass.exe (file missing)
O23 - Service: Virtual Disk Service (vds) - Unknown owner - C:\WINDOWS\System32\vds.exe (file missing)
O23 - Service: Volume Shadow Copy (VSS) - Unknown owner - C:\WINDOWS\System32\vssvc.exe (file missing)
O23 - Service: WMI Performance Adapter (WmiApSrv) - Unknown owner - C:\WINDOWS\system32\wbem\wmiapsrv.exe (file missing)

Thanks, Anja