drop and play problem

Without seeing the code, it is difficult if not impossible to diagnose the second problem: please provide a relevant code fragment!

For drag and drop:
1) Set the AllowDrop property of your form to True
2) Create a handler for both the DragEnter and DragDrop events of your form.
3) In the DragEnter handler, add the following line of code:

e.Effect = DragDropEffects.Move;

4) In the DragDrop handler, add the following:

string[] files = (string[]) e.Data.GetData(DataFormats.FileDrop);
if (files != null)
    {
    foreach (string file in files)
        {
        Console.WriteLine(file); // Or whatever you need to do...
        }
    }

Or, if you need in in VB...:O

Dim files As String() = DirectCast(e.Data.GetData(DataFormats.FileDrop), String())
If files IsNot Nothing Then
	For Each file As String In files
		Console.WriteLine(file) ' Or whatever you need to do...
	Next
End If