private TreeNode CreateInterfaceNode(COMInterfaceEntry ent)
{
TreeNode nodeRet = new TreeNode(String.Format("{0} - {1}", ent.Iid.ToString(), ent.Name), InterfaceIcon, InterfaceIcon);
nodeRet.ToolTipText = BuildInterfaceToolTip(ent, null);
nodeRet.Tag = ent;
return nodeRet;
}