private void RemoveOwnScripts()
{
runScriptToolStripMenuItem.DropDown.Items.Clear();
List<ToolStripItem> list = new List<ToolStripItem>();
foreach (ToolStripItem item in mainContextMenu.Items)
list.Add(item);
foreach (ToolStripItem item in list)
if (item.Name.Contains("_ownScript"))
mainContextMenu.Items.RemoveByKey(item.Name);
if (mainContextMenu.Items[mainContextMenu.Items.Count - 1] is ToolStripSeparator)
mainContextMenu.Items.RemoveAt(mainContextMenu.Items.Count - 1);
}