KB10111 - PS: Enumerate Exchange relevant versions in forest

General description

This article describes how to read Exchange relevant version information from Active Directory. It contains a small Power Shell script, which collects the required values in a whole forest.

Determine the version manually

Configuration objectVersion

Open ADSIEDIT.msc
Connect to the configuration partition
Go to the container: Services⁄Microsoft Exchange and edit the properties of you Exchange organization
Scroll down to the field "objectVersion"

rangeUpper in AD DS Schema

Open ADSIEDIT.msc
Connect to the Schema partition
Navigate to object "CN=ms-Exch-Schema-Version-Pt"
Select the properties of the object
Scroll to the field "rangeUpper"

objectVersion in the Domain

Open "Active Directory Users and Computers"
Enabled "Advanced Features" in the "View" menue
Select the properties of "Microsoft Exchange System Objects"
Scroll to the field "objectVersion"

List of correct versions:

Exchange 2016: >> technet article

Script code:

	
##------------------------------------------------------------------------------------------------
##
##  Get-ExchangeADDSVersionInformation.ps1
##
##   Version 1.0.2
##
##   (c) 2016 Martin Mueller
##		www.sh-soft.com
##
##  Licence: Feel free to use and redistribute this script!
##
##------------------------------------------------------------------------------------------------

if (-Not (Get-Module -Name ActiveDirectory)) {
	Import-Module ActiveDirectory
}

$ForestDN = Get-ADForest | Select-Object -ExpandProperty RootDomain | Get-ADDomain | Select-Object -ExpandProperty DistinguishedName
$ConfigurationDN = "CN=Configuration,"+$ForestDN
$ExcontainerDN = "CN=Microsoft Exchange,CN=Services,"+$ConfigurationDN
$OrgDN = Get-ChildItem -Path "AD:\$ExcontainerDN" | Where-Object {$_.ObjectClass -eq "msExchOrganizationContainer"} | Select-Object -ExpandProperty DistinguishedName
$SchemaObjectDN = "CN=ms-Exch-Schema-Version-Pt,CN=Schema,"+$ConfigurationDN

Write-Host -ForegroundColor Green "Enumerating Exchange version information in forest: "-NoNewline
Write-Host (Get-ADForest | Select-Object -ExpandProperty RootDomain)
#WriteOrgName to console
Write-Host -ForegroundColor Yellow "Exchange Organization Name: " -NoNewline
Write-Host (Get-ChildItem -Path "AD:\$ExcontainerDN" | Where-Object {$_.ObjectClass -eq "msExchOrganizationContainer"} | Select-Object -ExpandProperty Name)

#Forest wide configuration
$ConfigurationObjectVersion = Get-ADObject -Identity "$OrgDN" -Properties objectVersion | Select-Object -ExpandProperty objectVersion
$RangeUpperVersion = Get-ADObject -Identity "$SchemaObjectDN" -Properties rangeUpper | Select-Object -ExpandProperty rangeUpper

#Domain Version
$DomainsInForest = Get-ADForest | Select-Object -ExpandProperty Domains

# Write info to console
Write-Host ""
Write-Host -ForegroundColor Yellow "Version Information:"
Write-Host ""
Write-Host -ForegroundColor Yellow "objectVersion in Configuration partition: " -NoNewline
Write-Host $ConfigurationObjectVersion
Write-Host ""
Write-Host -ForegroundColor Yellow "rangeUpper in Schema partition: " -NoNewline
Write-Host $RangeUpperVersion
Write-Host ""
Write-Host -ForegroundColor Yellow "objectVersion of each domains 'Exchange System Objects' container:"
foreach  ($Domain in $DomainsInForest) {
    $DomainDetails = Get-ADDomain -Identity $Domain | Select-Object -Property PDCEmulator, DistinguishedName
    Write-Host -ForegroundColor Yellow " Domain: " -NoNewline
    Write-Host $Domain
    Write-Host -ForegroundColor Yellow "  queried DC: " -NoNewline
    Write-Host $DomainDetails.PDCEmulator
    Write-Host -ForegroundColor Yellow "  objectVersion: " -NoNewline
    $ExchangeDNinDomain = "CN=Microsoft Exchange System Objects,"+$DomainDetails.DistinguishedName
    Write-Host (Get-ADObject -Identity "$ExchangeDNinDomain" -Server $DomainDetails.PDCEmulator -Properties objectVersion | Select-Object -ExpandProperty objectVersion)
}