We have been running our Exchange 2007 environment for approximately four months now. While setting up some room resources, we entered in the command:set-mailboxpermission <Room> user <AdminUsername> -accesslevel fullaccessin order to gain access to change permissions for the room, as directed. The shell returns the error:The term 'setmailboxpermission' is not recognized as a cmdlet, function, operable program, or script file. Verify the term and try again.The admin username is an Exchange Org Admin and is also a Domain admin. (proper checks and balances in place).We used this cmdlet before to help set up the other rooms, and know for a fact that it worked. Where did our cmdlet go? Inquiring minds want to know.

hi there. The correct cmdlet is Add-MailboxPermission. For more information, see http://technet.microsoft.com/en-us/library/bb124097.aspx David.

It is also possible that you have launched the PowerShell without the EMS extensions. I have done that a few times. Make sure that you run the EMS shortcut and not just the PowerShell.

Thanks a lot. I also discovered that the correct cmdlet should be: add-mailboxpermission <Room> user <AdminUser> -accessrights fullaccess Which then works. Thanks for your help!!