When you try to open your Public folders or User mailboxes with PFDVAdmin on your Windows 7 client, you receive the following error:
Could not expand http://(your mailbox folders)
In my case, this problem occurs in combination with Exchange 2007.
- First, install .NET Framework 1.1. It can be downloaded here. Now retry to open the public folders or user mailboxes.
- If this still is not working, be sure you are using an account which is an Exchange administrator.
- You can also try to open PFDAVAdmin with secondary logon with an Exchange admin account. The steps can be found here: