C# Injecting Unmanaged Export with Syringe

Hello guys, I'm having a trouble with injecting unmanaged export.

It is my unmanaged export (Test.dll) code:

Code:

using System;
using System.Threading;

using System.Windows.Forms;
using RGiesecke.DllExport;

namespace Test
{
    internal static class UnmanagedExports
    {
        [DllExport("dll_main", CallingConvention = System.Runtime.InteropServices.CallingConvention.StdCall)]
        static void dll_main()
        {

            new Thread(() => Application.Run(new MainForm())).Start();
        } 
    }
}

And it is my injection code with Syringe library:

Code:

          try
            {
                using (Injector syringe = new Injector(Process.GetProcessesByName("notepad")[0]))
                {
                    syringe.InjectLibrary("Test.dll");

                    syringe.CallExport("Test.dll", "dll_main");
                }
               
                
            }

            catch (Exception e)
            {
                Console.WriteLine(e.Message);
            }

When i execute my code it gives an error in here : syringe.CallExport("Test.dll", "dll_main");

It is : "The specified procedure could not be found"

Project Version: .Net Framework 2.0
DLL Version : .Net Framework 2.0