PowerShell: XenServer Messages (Since)

If you are expecting a message to occur after an action you are taking the following may be of use to you.

$messages = Get-XenServer:Message.Since -Since [System.DateTime]::Now
foreach($i in $messages.Values) { $i }

Obviously this doesn't do anything intelligent like look for the specific event, but once you see the output you can customize it to do whatever you want.