How to show bitmaps from services

For a particular application I developed a service that start automatically, also when no user is logged on. This service is a simple console application, however, it launch an MFC based subprocess. During the initialization of this process I need to show some information on the monitor, also when NO USER is logged. How can I execute a dialog or a splash form the service or from the subprocess? Can someone help me? Thanks,
Roberto Fogliardi (roberto.fogliardi@vnet.aethra.it)