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Paolo Fiorani Personal Blog > Posts > How to verify Active Directory and Exchange Schema version  

How to verify Active Directory and Exchange Schema version
Active Directory:
Check the Properties of the Schema Partition CN=Schema,CN=Configuration,DC=<domain>, the attribute objectVersion
 
13
Microsoft Windows 2000
30
Microsoft Windows Server 2003 RTM
Microsoft Windows Server 2003 SP1
31
Microsoft Windows Server 2003 R2
44 Microsoft Windows Server 2008 RTM
47 Microsoft Windows Server 2008 R2
56 Microsoft Windows Server 2012
 
DSQuery Syntax:
 
dsquery * CN=Schema,CN=configuration,DC=<domain>,DC=<com> -scope base -attr objectVersion
 
Exchange:
Check under the Schema Partition CN=ms-Exch-Schema-Version-Pt,CN=Schema,CN=Configuration,DC=<domain> the attribute rangeUpper
4397
Exchange 2000 RTM
4406
Exchange 2000 SP3
6870
Exchange 2003 RTM
6936 Exchange 2003 SP3
10628 Exchange 2007 RTM
11116

Exchange 2007 SP1

14622 Exchange 2007 SP2 and Exchange 2010 RTM
14732 Exchange 2010 SP2
 
To see those values you need ADSI Edit from Support Tools or another LDAP v3 client.
 
DSQuery Syntax:
 
dsquery * CN=ms-Exch-Schema-Version-Pt,CN=Schema,CN=configuration,DC=<domain>,DC=<com> -scope base -attr rangeUpper
 
Reference:
Error message when you run the Active Directory Installation Wizard: "The version of the Active Directory schema of the source forest is not compatible with the version of Active Directory on this computer": http://support.microsoft.com/kb/917385
 
How to Verify That ForestPrep and DomainPrep Completed Successfully in Exchange 2000 Server or Exchange Server 2003: http://support.microsoft.com/kb/274737
 

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