Hi, System.Threading.ApartmentState has 3 possible values: MTA, STA, and Unknown. It seems to me that MTA is a superset of STA, and MTA should be fine for CLR calling COM or COM calling a CLR. But then why is STA needed in the .net world?
The C# Console & EXE wizards generate [STAThread] by default. Why dont they generate [MTAThread] by default? Is the answer that MTA calling STA is not compatible and, since most COM objects are STA, having [MTAThread] would cause COM to create a MTA compartment as a proxy to marshal calls to the COM STA? The C# service wizard does not generate any apartment state default code. Why should it be different in this respect to a regular EXE? Regards, Jonni You can read messages from the Advanced DOTNET archive, unsubscribe from Advanced DOTNET, or subscribe to other DevelopMentor lists at http://discuss.develop.com.
