Access Remote PC

From Access-remote-pc:

Remote PC Access is fast, compact software for accessing and controlling any computer from any computer on the Internet or on local area networks (LAN). View the remote PC's screen and control its keyboard and mouse just as if you were sitting in front of it. The software transparently works through firewalls and routers, and has support for dynamic IP addresses. There is also an option to connect to a remote computer by its nickname instead of its IP address. You can save time and cut on travel costs by fixing problems right from your office; access your office computer from home; take control of any PC on the LAN; securely control a remote server on the LAN or on the Internet; fix software-related problems remotely; broadcast your screen to up to 100 computers simultaneously; and access your computer from any PC in the world.

Version 4.8.2 adds file synchronization capability.