Drag/Drop ListBox & Start Process Issue

Ok, this is a strange one.... I have a listbox in my main form that I allow files to be added to with a button or via drag/drop method. Later in the program, based on some information in the form, I start another process (cmd.exe) to enter some information into the registry. If I add items to the list with the add button everything works fine. If I add items with drag and drop the process starts but thats it, it just hangs there; no expcetion or error.

Here is the drag/drop events.

Drag/Drop Enter:

Code:

---

private void DD_Enter(object sender, DragEventArgs e)
        {
            if (e.Data.GetDataPresent(DataFormats.FileDrop))
            {
                e.Effect = DragDropEffects.All;
            }
            else
            {
                e.Effect = DragDropEffects.None;
            }
        }

---

Drag/Drop Drop:

Code:

---

private void DD_Drop(object sender, DragEventArgs e)
        {
            string[] DDFiles = (string[])e.Data.GetData(DataFormats.FileDrop, false);

            foreach (string FileExt in DDFiles)
            {
                if (!FileExt.ToLower().EndsWith(".mtmtdb"))
                {
                    MessageBox.Show("Only ModernTech Training Database Files (.mtmtdb) Can Be Utilitzed");
                }
                else
                {
                    if (!DatabaseList.Items.Contains(FileExt))
                    {
                        DatabaseList.Items.Add(FileExt);
                    }
                    else
                    {
                        MessageBox.Show("Database Item Already Present");
                    }
                }
            }
        }

---

Here is the Process start information.

Code:

---

try
            {
                System.Diagnostics.Process ImportRegistry = new System.Diagnostics.Process();
                ImportRegistry.StartInfo.FileName = "cmd.exe";
                ImportRegistry.StartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
                ImportRegistry.StartInfo.Arguments = ("/C regedit.exe /s " + @"""" + RFLocation + @"""");

                MessageBox.Show("Process Start");

                ImportRegistry.Start();

                MessageBox.Show("Process Started/Stop");
               
                ImportRegistry.Close();

                MessageBox.Show("Process Stopped");
            }
            catch (Exception ex0) { MessageBox.Show(ex0.ToString()); }

---

If I add via the add button and run the application than every messagebox will show. If I do it via drag/drop on the "Process Start" box shows. That is the only difference between the two when I run it...

Help!!! Please! :)