Emsa Port Blocker

Emsa Port Blocker is a TCP blocking tool. It blocks unwanted tcp access from or to a computer using customizable rules. It is not a firewall, but acts in a similar way.
Its purpose is to disable TCP access on certain ports and IP addresses. It can also be used as TCP monitoring, as it shows TCP connections that are currently active on the device.

If you are using Windows 10 you need to run the program as Administrator.

Installation notes:
This product requires the VB6 runtime. It is already installed on most Windows systems (XP and above). However, if you get error messages when running the program after installation, download and install the Microsoft runtime (1 MB). Restart on demand.