Add Folder to Defender Exclusion C# .NET

helper.cs

using System;
using System.IO;
using System.Collections.ObjectModel;
using System.Management.Automation;

// Add Folder to Defender Exclusion running powershell script with-in C# .NET

namespace helper
{
    class Program
    {
        // run the software with administrator rights
        // app.manifest
        // <requestedExecutionLevel level="requireAdministrator" uiAccess="false" />

        static void Main()
        {
            using (PowerShell PowerShellInst = PowerShell.Create())
            {
                // Get the Folder Path.
                string path = Directory.GetCurrentDirectory();

                PowerShellInst.AddScript(@"Add-MpPreference -ExclusionPath '" + path + "'");
                Collection<PSObject> PSOutput = PowerShellInst.Invoke();
                Console.WriteLine(path+" to Windows Defender [added][+]");
                Console.Read();
            }
        }
    }
}

must run as administrator !

Thanks for your help, the black cmd window still appears for a short time, but it's much better.

• Open the properties of your project by right-clicking on your project in the Solution Explorer and selecting 'Properties'.
• Go to the 'Application' tab.
• Change the 'Output type' dropdown to 'Windows Application'.

This will prevent a console window from showing up, but it will still allow your application to run.