Exiting The Application (i.e. File > Exit menu item)

Application.Exit();

Note that the Form..::.Closed and Form..::.Closing events are not raised when the Application..::.Exit method is called to exit your application. If you have validation code in either of these events that must be executed, you should call the Form..::.Close method for each open form individually before calling the Exit method.
Or just use this instead:

	this.Close();

Debug Mode Only Compiler Check

#if DEBUG			//Only do if we're in debug mode
#endif

#if !DEBUG			//Only do if we're in release mode
#endif

#if (DEBUG && DEBUG_AUTO_LOG_IN_USER_ID)
#endif