Hi Mike.

>Could someone please tell me the name of the MS treeview control's ocx

It depends on the version: version 5 is in COMCTL32.OCX and version 6 is in MSCOMCTL.OCX. The easiest way to find the OCX for an ActiveX control is to create a form, drop an OLE control on it, and in the Insert Control dialog that appears, click on the desired control. The "Result" part of the dialog shows the ClassID and OCX name (including path) for the selected control.

Doug