Useful scripts

# Exchange Schema Version $sc = (Get-ADRootDSE).SchemaNamingContext $ob = "CN=ms-Exch-Schema-Version-Pt," + $sc Write-Output "RangeUpper: $((Get-ADObject $ob -pr rangeUpper).rangeUpper)" # Exchange Object Version (domain) $dc = (Get-ADRootDSE).DefaultNamingContext $ob = "CN=Microsoft Exchange System Objects," + $dc Write-Output "ObjectVersion (Default): $((Get-ADObject $ob -pr objectVersion).objectVersion)" # Exchange Object Version (forest) $cc = (Get-ADRootDSE).ConfigurationNamingContext $fl = "(objectClass=msExchOrganizationContainer)" Write-Output "ObjectVersion (Configuration): $((Get-ADObject -LDAPFilter $fl -SearchBase $cc -pr objectVersion).objectVersion)" # Exchange Object Version (configuration) This script will give you the output in below format: Post Schema Update : RangeUpper: 15334 ObjectVersion (Default): 13243 ObjectVersion (Configuration): 16223

$rootDomainSid = (Get-ADDomain -Server (Get-ADForest).RootDomain).DomainSID.value $hasher = [System.Security.Cryptography.HashAlgorithm]::Create('sha256') $hash = $hasher.ComputeHash([System.Text.Encoding]::UTF8.GetBytes($rootDomainSid)) $hashString = [System.BitConverter]::ToString($hash) $hashString.Replace('-', '')