#Region VARIABLES

# WSUS Connection Parameters:
[String]$updateServer = "myWSUSServer.domain.local"
[Boolean]$useSecureConnection = $False
[Int32]$portNumber = 80

#EndRegion VARIABLES

#Region SCRIPT

# Load .NET assembly
[void][reflection.assembly]::LoadWithPartialName("Microsoft.UpdateServices.Administration")

# Connect to WSUS Server
$Wsus = [Microsoft.UpdateServices.Administration.AdminProxy]::getUpdateServer($updateServer,$useSecureConnection,$portNumber)

# Perform Synchronization
$Subscription = $Wsus.GetSubscription()
$Subscription.StartSynchronization()

#EndRegion SCRIPT