$keepConfig = 'R_Wikigames_Eng'

$projects = Get-Project -All

foreach ($proj in $projects) {
	Write-Host "Elaborazione progetto: $($proj.Name)"

	# ConfigurationManager (DTE)
	$configMgr = $proj.ConfigurationManager
	$configNames = $configMgr.ConfigurationRowNames

	foreach ($cfg in $configNames) {
		if ($cfg -ne $keepConfig) {
			# remove config
			Write-Host "- remove config: $cfg"
			$configMgr.DeleteConfigurationRow($cfg)
		}
	}
}