I am trying to create a one-way external trust between two different ADs. However, it is failing with the message:
The operation failed. The error is: This operation is not supported on a computer running Windows Server 2003 for Small Business Server
There is no longer an SBS 2003 server in our environment. We did a migration 4 years ago to SBS 2008. This past year we migrated to Server 2008 Standard. We build a new PDC and BDC. The PDC has the same name as the old SBS 2003 server. We haven't removed the SBS 2008 server and it is still a domain controller but not the operations master. The SBS 2003 was never cleanly removed from AD because of a hardware issue.
It has now come back to haunt us. Is there a way to remove the remnants of the SBS 2003 server from AD so that the trust can be established?
A one-way trust (internal) has been created from extranet Server 2012 AD to internal AD server 2008 successfully
A one-way trust (external) has not been created from Internal AD to Extranet AD due to error above.
If there are step by step instructions, it would be truly appreciated.