running Powershell from ASP.NET Core 6

[Johannes B Latzel]

I'm running an ASP.NET Core 6 application on an IIS as a Rest Api calling Powershell scripts for specific tasks. It works well from my laptop (Windows 10) but doesn't work when I'm running it on a Windows Server 2019 Version 1809 Build 17763.1935. The error tells me that it cannnot find the assembly "Microsoft.Management.Infrastructure". Unhandled exception. System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.Management.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. Das System kann die angegebene Datei nicht finden. File name: 'Microsoft.Management.Infrastructure, Version=1.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' "Das System kann die angegebene Datei nicht finden." = "File not found." Did anyone encounter that problem too? The server has the following things installed: Microsoft .NET 6.0.3 - Windows Server Hosting Microsoft .NET Runtime - 6.0.3 (x64) Microsoft .NET Runtime - 6.0.3 (x86) Microsoft .NET SDK 6.0.201 (x64) Microsoft ASP.NET Core 6.0.3 - Shared Framework (x64) Microsoft ASP.NET Core 6.0.3 - Shared Framework (x86) Microsoft Visual C++ 2015-2019 Redistributable (x64) - 14.28.29913 Microsoft Visual C++ 2015-2019 Redistributable (x86) - 14.28.29913 IIS 10.0 Windows PowerShell 5.1 PowerShell 7.2.1 Now to test if it is the server setup missing something I wrote a little .net console application with this code

using System.Management.Automation;
using System.Management.Automation.Runspaces;
using Microsoft.PowerShell;

var initialSessionState = InitialSessionState.CreateDefault();
initialSessionState.ExecutionPolicy = ExecutionPolicy.Unrestricted;
using (PowerShell powerShell = PowerShell.Create(initialSessionState))
{
powerShell.AddCommand("whoami");
foreach (var item in powerShell.Invoke())
{
Console.WriteLine(item.BaseObject.ToString());
}
if (powerShell.HadErrors)
{
throw new Exception("powershell script had errors");
}
}

I can run this program on the server without problems. But if I copy-paste this exact code into my Api code it fails with the above error. Any ideas?

[Dave Kreskowiak]

Chances are the account your ASP.NET site is running under does not have permissions to run Powershell. Try creating a normal user account and running your site under that account to test. No, that is not a viable solution if it does work. The entire point of having such a restricted account is to prevent security issues if someone gets your code to execute something malicious.

Asking questions is a skill CodeProject Forum Guidelines Google: C# How to debug code Seriously, go read these articles.
Dave Kreskowiak