Microsoft KB Archive/174743

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XADM: Cannot Install 4.0/5.0 KMS After Installing 5.5 Server

Article ID: 174743

Article Last Modified on 10/28/2006


  • Microsoft Exchange Server 5.5 Standard Edition

This article was previously published under Q174743


If you run Setup to install a Key Management (KM) server version 4.0 or 5.0 in a site that has a mix of version 4.0, 5.0, and 5.5 servers, Setup will fail with the following error message:

Unable to create Encryption-Cfg object in the site you are running
Setup. Verify the Microsoft Exchange Directory is running then try


This is by design. This error occurs because Exchange Server version 5.5 Setup creates the encryption-cfg object for the site, and earlier versions of the KM server Setup program cannot utilize an existing version of this object.

Additional query words: KMS KM

Keywords: kbusage KB174743