It sounds like you’re referring to Willar Software in the context of programming or automation for Windows 10. However, I wasn’t able to find a widely known “Willar Programmer” tool — it’s possible you meant:
Software Informer: Lists version 1.01 with a description of the utility. willar programmer software for windows 10
Step 3: Change the "COM Port Number" to a free slot between 1 and 9. It sounds like you’re referring to Willar Software
for a specific programmer model like the SP200S. Would you like a list of supported chips for this software? How Do I Repair Wlpro.exe Errors? - Solvusoft willar programmer software for windows 10