Connection Monitor is a portable realtime network connection monitor for the Windows operating system. It is basically an alternative to popular portable application Curr Ports or Open Ports which is also displaying the TCP / IP network connections in realtime. Connection Monitor will display all network connections (incoming and outgoing) upon startup listing locale and remote addresses and ports, the protocol used by the connection and the status of the connection. Changes, meaning new or closed connections, are automatically displayed in the program’s interface.
The network connection data that is displayed by Connection Monitor is basic but useful for a quick overview of all network connections. The program itself lacks information that are displayed in Curr Ports, most notable the process ID and process that are using that network connection. It is therefor more difficulty to identify the running processes with Connection Monitor.

Curr Ports (and Open Ports as well) is therefor the better alternative for users who would like to identify the processes that use the open network connections. Connection Monitor is a free download at the developer’s website. No compatibility information are displayed on the website or in the application. It worked fine on a Windows XP SP3 test system.
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Great info – thanks!
So does this log when connections are established and lost too, or is it just a very mildly useful ‘current connections’ display?
It only displays the connections in realtime, as far as I know.