Windows Backup API

Does anyone know if Microsoft has created and API for Windows Backup? Does anyone know how to use the BRCplLib COM DLL? BRCplLib is the Backup and Restore Control Panel Type Library. I was able to add it as a reference in my VS2005 project but I don’t know the first about using it and a Microsoft or Google search just comes up empty.
Basically my goal is to create a windows service that will regularly perform backups on servers that the service is installed on. I know I can use the windows backup utility that comes with Win Server 2003 but there’s more that needs to be done than the utility offers. Any help would be much appreciated…