Solved

c# PowerShell runspace woes

Posted on 2016-09-27
5
185 Views
1 Endorsement
Last Modified: 2016-09-28
I have the following code, and an issue with it.  Starting with the PowerShell block:
Import-Module RemoteDesktop
$ConnBroker = (Get-RDConnectionBrokerHighAvailability -ConnectionBroker "dm3us050.dm3.wizmoworks.net").ActiveManagementServer
Set-RDSessionHost -SessionHost $server -ConnectionBroker $ConnBroke -NewConnectionAllowed $action

Open in new window

And the following c# code:
        public static void RunPowershellCommand(string scriptPath, string[,] variables = null)
        {
            RunspaceConfiguration runspaceConfiguration = RunspaceConfiguration.Create();
            Runspace runspace = RunspaceFactory.CreateRunspace(runspaceConfiguration);
            runspace.Open();
            RunspaceInvoke scriptInvoker = new RunspaceInvoke(runspace);
            //scriptInvoker.Invoke("Set-ExecutionPolicy Unrestricted");
            
            Pipeline pipeline = runspace.CreatePipeline();

            Command myCommand = new Command(scriptPath, false);

            if (variables[0, 0] != null)
            {
                for (int i = 0; i < variables.GetLength(0); i++)  //Add all the powershell variables we might need in the partner specific.
                {
                    runspace.SessionStateProxy.SetVariable(variables[i, 0], variables[i, 1]);
                }
            }

            pipeline.Commands.Add(myCommand);
            Collection<PSObject> psObjects;
            psObjects = pipeline.Invoke();
            runspace.Close();
        }

Open in new window


The powershell script works independently, but when I run it from the c# runspace I get the following error:
{"The term 'Get-RDConnectionBrokerHighAvailability' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again."}

Any ideas why Powershell can't use this cmdlet when invoked via my c# app?

Thanks,
1
Comment
Question by:Dustin Saunders
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 40

Expert Comment

by:Subsun
ID: 41819788
My two cents :
Check the version of PowerShell when you invoke it from you app. I have see similar issues with our orchestrator server .net activity tasks, as it invokes/executes it’s commands still in PowerShell 2.0 instead of PS version installed on the computer.

As a work around, we are running the script in a sub process, example..

$Result = PowerShell { <Script Here> }

Check and see if there is a difference when you try these commands inside your app..

PowerShell {$Host.Version}
$Host.Version


Or it's possible that the RemoteDesktop module file is not accessible for the user account which you use to run the application/script.

To check the access issue, copy the module folder from default module path C:\Windows\system32\WindowsPowerShell\v1.0\Modules\ to C:\Users\<UserName>\Documents\WindowsPowerShell\Modules and try to run app..
0
 
LVL 13

Author Comment

by:Dustin Saunders
ID: 41819854
That seems to work for executing the code, but it doesn't pass the variables through- is there a way I can dump the variables I pass to the script in the sub process? (doesn't look like I can add any -args)
0
 
LVL 40

Accepted Solution

by:
Subsun earned 500 total points
ID: 41819897
-Args should work.. Try..
Powershell.exe {Write-host $Args[0] $Args[1]} -Args $message,$message1

Or

Powershell.exe {Param($message,$Message1) Write-host $Message $Message1} -Args $message,$message1

Open in new window

0
 
LVL 13

Author Closing Comment

by:Dustin Saunders
ID: 41819940
Hey, that was incredibly helpful.  Thanks, greatly appreciated!
0
 
LVL 40

Expert Comment

by:Subsun
ID: 41819963
happy to help!.. :-)
0

Featured Post

Does Powershell have you tied up in knots?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

A procedure for exporting installed hotfix details of remote computers using powershell
A quick Powershell script I wrote to find old program installations and check versions of a specific file across the network.
Exchange organizations may use the Journaling Agent of the Transport Service to archive messages going through Exchange. However, if the Transport Service is integrated with some email content management application (such as an antispam), the admini…
NetCrunch network monitor is a highly extensive platform for network monitoring and alert generation. In this video you'll see a live demo of NetCrunch with most notable features explained in a walk-through manner. You'll also get to know the philos…

632 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question