Check Current Active Directory or Exchange Server Schema Version

Need to determine what AD and Exchange Server schema versions are installed?  Run the following three commands from an elevated Command Prompt.

NOTE: The text in red will vary for every Exchange organization and Active Directory environment.

For Exchange Server schema version…

dsquery * “cn=ms-exch-schema-version-pt,cn=schema,cn=configuration,dc=domainname,dc=local" -scope base -attr rangeUpper

For AD forest version…

dsquery * “cn=first organization,cn=microsoft exchange,cn=services,cn=configuration,dc=domainname,dc=local” -scope base -attr objectVersion

For AD domain version…

dsquery * “cn=microsoft exchange system objects,dc=domainname,dc=local” -scope base -attr objectVersion


Good luck.

Todd (@oddytee)

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