Which are you using (Windows 10, XP, etc.)? Do you need help integrating it into MPLAB X ?
It is most stable on Windows 7 or Windows XP . Users on Windows 10 or 11 may need to run the installer in Compatibility Mode . Where to Download Hi-tech C Compiler For Pic10 12 16 Mcus V9.83 Download
Optimizes code across the entire project for smaller footprints. Overview of the HI-TECH C Compiler for PIC10/12/16 MCUs (v9