Why a 3rd party Fax Routing Extension does not load in Windows XP?
A12. Windows XP does not support 3rd party Fax Service Routing Extensions. On attempt to register or load it, error code FAX_ERR_NOT_SUPPORTED_ON_THIS_SKU defined in winfax.h as 7011L is returned. They probably try to encourage to use Windows 2003 Server that supports 3rd party Routing Extensions. In the scope of Windows XP, it’s possible to write a Fax Service client application that would effectively play the Routing Extension role. This application would call FaxServer.ListenToServerEvents() to listen for IFaxServerNotify callbacks to manipulate incoming tiff files using construction like FaxServer.Folders.IncomingArchive.GetMessage().CopyTiff().