What capabilities (server object extensions) are supported for MSD-based map services?
The WMS and KML capabilities are available with MSD-based services, as well as the default Mapping capability. Custom server object extensions can also work with MSD-based services but they cannot access fine-grained ArcObjects; they must use the coarse-grained methods on MapServer and its related classes. The important part of the above statement is tha ‘custom SOEs cannot access fine-grained ArcObjects’. Well, what does that really mean? It kinda means that you cannot access the fine-grained ArcObjects features that are exposed through the IMapServerObjects interface on the MapServer server object. But being from the .NET world, I had trouble wrapping my head around how the same MapServer server object class can serve both the MXD map services and also the MSD map services and behave differently for each service type. How can the same MapServer class offer the IMapServerObjects features for MXD map services but not for MSD map services? I tried casting(QI) the MapServer server object
