Remote control service on the internet has found many applications such as remote teaching service and industry applications. Our research is not like the traditional method which sends image frames to network users. Instead, we only send the mouse and keyboard message. Our research is composed of two techniques: one is to connect computer¡¦s mouse and keyboard message with virtual device driver, and the other is to provide network function and interface with Win32 application. The accomplishment of virtual device driver is achieved by VxD and Win32 API. We compare our method with other traditional methods in both local network and 56K Modem to test the possibility of remote teaching service. The transmission amount is reduced significantly by our method. Also, the remote teaching service using our method has been successfully performed at 56K modem network environment without the delay phenomenon as shown in the test by the traditional method.