HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

Problem: The password file contains a password that is 4 characters longer than the password input field allows. The password was generated using the "password generator" button. As a result, the save file cannot be loaded. If it helps, here is my password from the file:
128674rV;)V?uWhSRP>2