What do you do when the the passcode to mailbox 9999 has been lost/changed?
If you have a backup or can FTP to the controller you can find the codes unencryped in folder
3300_icp\vmail\temp\db\backup\vmail\0000PARM.BIN
Just open in notepad.
Dont know what versions this works on but i have used it on MCD4.0