There was a download of PCSatC 1.2 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The PCSatC installer is commonly called PCSatC.exe. The program lies within System Utilities, more precisely Device Assistants.
The actual developer of the program is Smartcom Software Ltd. 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. The following version: 1.2 is the most frequently downloaded one by the program users.
From the developer:
PC SatC enables you to get the most out of your INMARSAT C system using your Windows PC. Unlike the DOS based CAPSAT software, PC SatC will run under all versions of Windows; supports USB and PCMCIA serial ports; and supports any COM port number. Compared to the Windows version of CAPSAT, PC SatC supports the full range of INMARSAT C functionality, such as sending faxes; distress and priority traffic; EGC and SafetyNet messages; and more.
You may want to check out more software, such as Family Key Logger, which might be related to PCSatC.