Unlike TrueType fonts (TTF), which are defined by their outlines, SHX fonts are vector-based
Restart AutoCAD to allow the software to recognize the new shape definitions. Alternatives and Best Practices
Based on the wording, here are the most likely interpretations, along with a short write-up for each possibility.
: Professional CAD communities like Cadalyst or Autodesk Forums often have users sharing standard SHX font libraries.
How to install a new or custom font for use in AutoCAD products
Users can download the CivilSHX font with a single click, ensuring they get the latest version available.