1 - AppsProtector XP 2.1 AppsProtector XP allows you to put a lock on a program file, such as a game, or your office software. The program icon is replaced with that of a padlock, and, when the program is run, it will first ask for the password. License: Shareware OS: Windows 9X/ME/2K/XP/2003 Size: 1601 KB