Advanced Woman Calendar allows to use logins to protect your personal data or to share the program with other users.
When you are starting the program you can see the window:
Please select your login and type password. Then press OK.
If its your first program start, please click the Create a new user link to create a new user.
Click the Delete user link to delete existing user.
All changes that you make working with the program will be saved only for current logged user.