问题
I'm looking at implementing custom COM activation logic for a managed class library, in MkParseDisplayName/BindToObject manner.
This way, creating an object from VB might look like this:
obj = GetObject("clsid:12341234-1234-1234-1234-123412341234:!UniqueObjectId")
That would not be a problem for an out-of-proc server (using CoRegisterClassObject). However, for an in-proc server, I'd need to alter the implementation of DllGetClassObject, which is normally provided by mscoree.dll. Is this possible at all?
The only other option I see is to create a C# singleton object to serve as class factory and implement IParseDisplayName on it. In theory, such singleton could also register a custom IClassFactory class object with CoRegisterClassObject(CLSCTX_INPROC_SERVER), but the singleton itself would need to get instantiated first, anyway.
来源：https://stackoverflow.com/questions/19308027/custom-com-class-factory-for-managed-in-proc-server