protected virtual void OnUnregisterReceived(
	ISIPExtension extension
)

Protected Overridable Sub OnUnregisterReceived ( 
	extension As ISIPExtension
)

protected:
virtual void OnUnregisterReceived(
	ISIPExtension^ extension
)

abstract OnUnregisterReceived : 
        extension : ISIPExtension -> unit 
override OnUnregisterReceived : 
        extension : ISIPExtension -> unit