# I used the following command to generate my images:
# mogrify -resize 96x96 -gravity center -extent 96x96 -format jpg \
#     -path outlook -background black -strip -coalesce -quality 95 *.jpg

# Add the Quest AD and Exchange snap-ins
Add-PSSnapin Quest.ActiveRoles.ADManagement -ErrorAction SilentlyContinue
Add-PSSnapin Microsoft.Exchange.Management.PowerShell.Admin -ErrorAction SilentlyContinue

Get-Mailbox -ResultSize Unlimited -RecipientTypeDetails UserMailbox | ForEach {
	$username = $_.SamAccountName

	If (Test-Path C:\Pictures\$username.jpg) {
		Write-Host "Photo found for $username, uploading... " -NoNewLine

		$photo = [byte[]](Get-Content C:\Pictures\$username.jpg -Encoding byte)

		# Use the Quest AD addons since we don't have 2008 R2 DCs...
		#Set-ADUser $username -Replace @{thumbnailPhoto=$photo}
		Set-QADUser $username -ObjectAttributes @{thumbnailPhoto=$photo} | Out-Null

		Write-Host "[OK]" -ForeGroundColor Green
	}
}

Write-Host "Done."

Update-OfflineAddressBook "Default Offline Address Book"