A public-domain utility called addprop.fll has been around for several months. It allows the dynamic addition of properties to objects that already exist. Written by Paul Bienick at Flash Creative Software. My copy is from 9/6/95. It will not work!!! I get an error message: "Data type mismatch", even when I run the sample program that was provided with the FLL.
Has anybody used this utility and had any success with it?

Thanks!