I think I have stumbled into an easier method. Looks OK so far.

From the project menu, the Project Info selection, go to the Servers tab.

Change the Description box to App1.FindFile and change the Project Name box to App1. Then build the dll with the name App1.Findfile. This seems to register the DLL distinctly twice in the registry. I had tried changing each box separately, but that didn't work. When I changed both, it seems to have worked. Thanks.