private void xxxx_DragDrop(object sender, System.Windows.Forms.DragEventArgs e)
{
	DataObject o = (DataObject)e.Data;
	if (o.ContainsFileDropList) {
		System.Collections.Specialized.StringCollection s = o.GetFileDropList;
		if (s.Count > 0) {
			string filepath = s[0];
		}
	}
}