The values in the System.Runtime.InteropServices.RegistrationConnectionType enumeration are used in the flags parameter of the RegistrationServices.RegisterTypeForComClients(Type, RegistrationClassContext, RegistrationConnectionType) method. These values are the same as those defined in the COM REGCLS enumeration, which is used as the flags parameter in calls to the COM API CoRegisterClassObject.
For more information about CoRegisterClassObject and the REGCLS enumeration, see the MSDN library.