IMail - LDAP won't start with error 16 in Active Directory environment

Question/Problem: I recently upgraded to version 8.1 of the IMail software and I lost all of my LDAP data. It doesn't show up in IMail Administrator, and when I try to connect to the port I had previously configured IMail's LDAP service to listen on, I can't connect. I am running IMail on a Domain Controller in my Active Directory system. (There is an error in Event viewer, terminated with specific error 16.)

Answer/Solution: With the addition of the OpenLDAP server, it is necessary to manually change the port this new LDAP server uses and to convert your old IMail LDAP information to the new OpenLDAP format. To do this, follow these steps:

1.) In IMail Administrator, select the LDAP service and change the port to the port previously used by the LDAP server in your earlier version of IMail. Click Apply and restart the LDAP service.
2.) Open a command prompt and navigate to the IMail directory.
3.) Type ldaper /CONVERT /Y and execute the command.

Note -- Depending on the amount of LDAP data to be converted, this process may take some time. DO NOT terminate the ldaper.exe application during this process.