Password Protect PC Programs and Applications | Kakasoft ExeLock
Download Kakasoft ExeLock here:
https://www.kakasoft.com/exelockinfo/
ExeLock is an easy-to-use program that allows you to password protect programs and applications. It works on the program files that are 32-bit Windows-9X/NT/2000/XP/ME executables. Usually, those files are stored on your system with default .EXE file type.