Thank you for answer! Yes, it should be possible to add the built-in fax service in XP x64 but it isnt, and for a very strange reason. The service needs a file, wfxapi.dll (WinFax Pro API?) thats not present on the XP cd or in the Windows installation. So it fails....... EDIT: Sorry, was using the wrong CD here, the XP x86 wont do, right? Was much better with the correct CD in the tray......