How to determine AD Schema Version from the command line using PowerShell, ldifde or repadmin
The version of the Schema in use by AD DS and AD LDS (ADAM) is to be found in the objectVersion attribute of the Schema Naming context and as such can be determined by navigating to the Schema Naming context using say ADSIedit or ldp.exe. From the command line we can use the Active Directory powershell module or ldifde or repadmin:
The commands above were run on a DC hence localhost:389, substitute the DC name as required. Repadmin and ldifde were run in the PowerShell window but could just be run from the command line on any device with AD DS tools installed.