Sad day. Sandrila SDL was my first Visio addon. Not only is SDL now an out-of-date technology, but the basis on which I built it is also out-of-date. It used Borland Delphi 6 and Graham Wideman's Visio controller written in Delphi. All now very out-of-date. The code I wrote used the now defunct .VDX, VTX, VSX file formats, and as I can no longer build the software I can't create a new release using the current (VSDX etc) file formats. So, sorry to say, this project is no more, it has ceased to be, it is an ex-project. Almost 20 years. Doesn't time pass quickly when you're enjoying yourself!