Forcing DPlotJr use (from DDE) while DPlot is installed

[meany]

I know I've seen this in documentation somewhere, but can't find it now...How do I force the use of DPlotJr from a DDE use (to simulate my clients state) while I have both DPlot and DPlotJr on my computer?

[DPlotAdmin]

Delete the registry key HKEY_CURRENT_USER\Software\DPlot. The good (and bad) news is that key gets rebuilt every time you run dplot.exe, so 1) you won't break anything, but 2) to use DPlot Jr you'll need to do this every time you run dplot.exe.

I've thought about adding a switch to DPLOTLIB.DLL to force the use of DPlot Jr for development purposes. The problem with doing that is I think most developers would forget to turn it off before distributing their applications. So then there would potentially be unhappy end users who don't understand why they paid for the full version. Suggestions are welcome.