(The Chinese version of tightvnc is an open source and free vnc remote control software, which can help users easily control remote computers. The tightvnc is divided into two parts: the server and the client. The user first installs the server on the computer that needs to be controlled, and sets the port, master password and check password. After the determination, the software automatically runs in the background. Finally, players can copy the client "tvnviewer.exe" to any computer to run, and then connect to the remote control after entering the remote host IP.)