I posted last month about a problem delegating installs of Exchange 2007 SP2. Delegated Admins will receive an error message stating the following…
You must be a member of the 'Exchange Organization Administrators' or 'Enterprise Administrators' group to continue.
Have been looking into the issue and have had a case open with Microsoft. Turns out that you only get this issue on a fully patched server. If you try upgrading or installing as a delegated admin on a fresh install of either server 2008 or 2003 you don’t see the problem either with Exchange SP1 or SP2. I haven’t had time to identify exactly what patch causes this yet, if I’ll bother at all.
If you have patched your server though, MS came up with this workaround.
- Disable update checking for the BPA by heading into the registry and HKCU\Software\Microsoft\Exchange\ExBPA and either creating or modifying a DWORD named “VersionCheckAlways” and set it to ‘0’
- Copy the installation files to a local drive and replace Setup\ServerRoles\Common\en\ExBPA.PreReqs.xml with this Modified XML File [I have since updated this link to a properly working file provided to us MS, please read the accompanying post]
Once you’ve done this you can ignore all Pre-Requisite Checking for the install. I was strongly advised my Microsoft that you should ensure that there are no other Pre-Requisite Failures by running an unmodified setup before making the changes above.
Microsoft have said that they’ll pass this to the product group for a fix.