Are you asking about the service entry itself? The SCM removes this when
DIFx removes (deletes) the service itself. However, for
NetTrans/NetService/NetClient INFs (and I am sure others as well) it is
possible to have an INF section processed at removal time and that section
can have a .Services section with service removal instructions DelService,
DelReg, etc.
But I suggest you use AppDrv.exe from the WDK samples and figure out what
DIFx will do on its own for you INF and build up from there.
Good Luck & Happy New Year,
Dave Cattley