Force removal of Public Folders Database

To uninstall the last Exchange 2003 server from Exchange Organisation you have to delete Public Folders Databases. You can find a few very good articles about removing the last Exchange 2003. These articles are very useful when everything goes well and you can replicate all Public Folders to a new Exchange 2007/2010 server. What if you are unable to replicate all Public Folders and some folders remain on the old server (at least Exchange tools state that)? I know from experience that this is a very common problem. I'm going to describe the procedure which easily solves this problem.

Important notice: If you remove Public Folders database using this method all data that remains in it will be lost!
Important notice 2: If you remove the first Public Folder Database via this method, the site folder server will point to a deleted object. You will subsequently need to fix that using ADSIEDIT. Refer to Site folder server deleted

To forcibly remove Public Folder Database

1. Open the following path using the adsiedit.msc tool
   CN=Configuration,DC=yourdomain,DC=yourhighlevelpartofdomain,CN=Services,CN=Microsoft Exchange,CN=YourOrganizationName,CN=Administrative Groups, CN=YourAdministrativeGoupName,CN=Servers,CN=YourServerName,CN=StorageGroupNameWhichContainsPFDatabase
2. In right window, right click Public Folder database name and delete it

You can use this procedure also with Exchange 2007/2010 Public Folder Databases.