获取所有正在运行的. net应用程序(不是Java)

我使用下面的代码，我得到了在一个窗口中运行的所有应用程序。

现在我只想得到。net (.exe)的应用程序。你能帮我吗?

public Form1()
{
    InitializeComponent();
    EnumWindows(new WindowEnumCallback(this.AddWnd), 0);
}
public delegate bool WindowEnumCallback(int hwnd, int lparam);
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool EnumWindows(WindowEnumCallback lpEnumFunc, int lParam);
[DllImport("user32.dll")]
public static extern void GetWindowText(int h, StringBuilder s, int nMaxCount);
[DllImport("user32.dll")]
public static extern bool IsWindowVisible(int h);
private List<string> Windows = new List<string>();
private bool AddWnd(int hwnd, int lparam)
{
    if (IsWindowVisible(hwnd))
    {
        StringBuilder sb = new StringBuilder(255);
        GetWindowText(hwnd, sb, sb.Capacity);
        Windows.Add(sb.ToString());
        txtTest.Text += hwnd.ToString()+" ";
        lst.Items.Add(sb.ToString());
    }
    return true;
}

[DllImport("mscoree.dll", CharSet = CharSet.Unicode)]
private static extern int GetFileVersion(string path, StringBuilder buffer, int buflen, out int written);
public static bool IsDotNetExecutable(string path)
{
    StringBuilder sBuilder = new StringBuilder(256);
    int written;
    int gvf = GetFileVersion(path, sBuilder, sBuilder.Capacity, out written);
    return gvf == 0;
}