convert crypted password to text password

[piripacchio]

Hi all,
Unfortunately, I have a website that I need to change from ADDT to another system and I have to carry on username and passwords.
But I used encrypted passwords with ADDT and now they are unusable on the new system.
So, I need to convert a 1.300+ encrypted password to simple text passwords.
I have the original table and the randomkey.
But how can I convert these passwords?
Is there a way to de-crypt them?
Or have I to reset all passwords and send emails asking to change passwords to all users?
TIA
tony

[Fred]

Not sure how ADDT encrypt the passwords.
So you probably better off just resetting the passwords. You can always use the excuse that you doing a security audit and found most members didn't change their passwords.