Downloading Serial/IP™ 4.3.2 from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this software available. The most popular versions among the software users are 4.9 and 4.3.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. Also the software is known as "SerialIP". Commonly, this program's installer has the following filename: PortMonitor.exe. This tool was originally produced by Tactical Software, LLC. The program lies within Internet & Network Tools, more precisely Network Tools.
From the developer:
On the client computer running Serial/IP
You add virtual COM ports using the Serial/IP Control Panel and configure them to use your serial server.
Your application uses Serial/IP virtual COM ports instead of local physical COM ports.
Your application opens, reads and writes virtual COM ports using the standard COM port API.
You may want to check out more software, such as Serial/IP®, which might be similar to Serial/IP™.