IIS Password Change solution documentation ? How to use anot3.asp ?(security banner ?)

Hello,

I would like to use IIS Password changes solution but I dont find a lot
of documentation.

Indeed, there are several pages but I didn't find any documentation
explaining which files is for what ?

For example what is the anot3.asp and how can I use it as it is a
warning webpage it should be used automatically when the password is
about to expire, no ?

Thank you

--
Pascal