Powershell delete MSMQ remotely - powershell

Question

I was wondering if it was possible to delete queues remotely via PowerShell? I have the following script:
cls
[Reflection.Assembly]::LoadWithPartialName("System.Messaging")
$computers = #("comp1","comp2","comp3");
foreach($computer in $computers) {
$messageQueues = [System.Messaging.MessageQueue]::GetPrivateQueuesByMachine($computer);
foreach ($queue in $messageQueues) {
$endpoint = [string]::Format("FormatName:DIRECT=OS:{0}\{1}", $computer, $queue.QueueName);
Write-Host $endpoint
[System.Messaging.MessageQueue]::Delete($endpoint);
}
}
This works fine, if I was running it on the machine whose queues I want to delete however when I run this remotely I get the error:
The specified format name does not support the requested operation. For example, a direct queue format name cannot be deleted.
Any ideas if this can be done?
EDIT
Oddly, I have figured I can remote onto the machine via PowerShell and execute a script block. However, I don't understand the difference between doing:
THIS:
$endpoint = [string]::Format("FormatName:DIRECT=OS:{0}\{1}", $computer, $queue.QueueName);
Invoke-Command -ComputerName $computer -ScriptBlock { [Reflection.Assembly]::LoadWithPartialName("System.Messaging"); [System.Messaging.MessageQueue]::Delete($endpoint) };
AND THIS:
Invoke-Command -ComputerName $computer -ScriptBlock { [Reflection.Assembly]::LoadWithPartialName("System.Messaging"); [System.Messaging.MessageQueue]::Delete("FormatName:DIRECT=OS:MY_SERVER\some.endpoint") };
The value of $endpoint is the same however, for some odd reason it doesn't like the variable approach though both values are identical. I tested this by setting $endpoint then calling delete. I get the error:
Exception calling "Delete" with "1" argument(s): "Invalid value for parameter path."
What I'm trying to say is if I hard code the value as part of the argument it works but assign it to a variable then invoke the method I get an error

Answer 1

For historic purposes if anyone else is experiencing this issue or is wondering how to delete queues remotely then please see below.
How do I delete private queues on a remote computer? It is possible to delete queues remotely. This can be achieved using the command Enable-PSRemoting -Force. Without this, you encounter the issue #JohnBreakWell indicated (see his link to MSDN).
The scope of variables when using Invoke-Command? The problem I found was the variables I declared were simply out of scope (script block was unable to see it). To rectify this, I simply did the following:
The important bit being the argument list and the use of param.
$computers = #("comp1","comp2");
foreach($computer in $computers) {
[Reflection.Assembly]::LoadWithPartialName("System.Messaging");
$messageQueues = [System.Messaging.MessageQueue]::GetPrivateQueuesByMachine($computer);
foreach ($queue in $messageQueues) {
$endpoint = [string]::Format("FormatName:DIRECT=OS:{0}\{1}", $computer, $queue.QueueName);
Enable-PSRemoting -Force
Invoke-Command -ComputerName $computer -ScriptBlock {
param ($computer, $endpoint)
[Reflection.Assembly]::LoadWithPartialName("System.Messaging");
[System.Messaging.MessageQueue]::Delete($endpoint)
}
} -ArgumentList $computer, $endpoint
}

Answer 2

You cannot delete a remote private queue.
You need to perform the operation locally to the queue.
From MQDeleteQueue:
Remarks
(2nd paragraph)
"Private queues registered on a remote computer ... cannot be deleted."

Answer 3

As Dr. Schizo mentioned, you'll need to execute
Enable-PSRemoting -Force
on the remote machine, but then, assuming you're using Server 2012 r2, it's as simple as:
Invoke-Command -ComputerName COMPUTERNAME { Get-MsmqQueue -Name QUEUENAME | Remove-MsmqQueue }