Добавление в автозагрузку

const string name = "MyTestApplication";
using Microsoft.Win32;
public bool SetAutorunValue(bool autorun)
{
    string ExePath = System.Windows.Forms.Application.ExecutablePath;
    RegistryKey reg;
    reg = Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Run\\");
    try
    {
        if (autorun)
            reg.SetValue(name, ExePath);
        else
            reg.DeleteValue(name);
 
        reg.Close();
    }
    catch
    {
        return false;
    }
    return true;
}

String s = System.Environment.GetEnvironmentVariable("programfiles");

string ExePath = System.Windows.Forms.Application.ExecutablePath;
    RegistryKey reg;
    reg = Registry.CurrentUser.CreateSubKey("Software\\Microsoft\\Windows\\CurrentVersion\\Run\\");
    reg.SetValue(name, ExePath);
    reg.Close();
    }

Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles)

Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);