There was a download of SourceMonitor 3.5.16.62 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. SourceMonitor lies within Development Tools, more precisely Debugging Tools.
This free tool was originally developed by Campwood Software. The following versions: 3.5, 3.4 and 3.3 are the most frequently downloaded ones by the program users. The program's installer is commonly called SourceMonitor.exe. ".smp" is the extension this free PC software can open. You can launch this free PC software on Windows XP/Vista/7/8/10/11 32-bit. We recommend checking the downloaded files with any free antivirus.
From the developer:
SourceMonitor monitors source code quality and quantity. Its goal is to help you, the programmer, become better at what you do. SourceMonitor measures simple metrics to help you expose the state of your code, and it keeps the results around so you can see how your project code changes over time. It can only be run in a host that supports at least one of these standard architectures.
You may want to check out more software, such as TestComplete, SciTE - Scintilla Text Editor with Extensions or Silverfrost FTN95 Express, which might be similar to SourceMonitor.