Converted to LV2014.
The error trapping seems to work well in LV2014 and 2015. It carries over into compiled executables, and also onto development systems where the SuperSecret.... etc token has not been set to True.
The three vis with "user-defined error handler" in their names were an attempt to invoke an undocumented private property. The hope was that the property would replace the standard LV auto error handler with my experimental one, a large flashing red error lamp!
Have fun, and if you have any questions, feel free to contact Ted Anderson at Original Code Consulting (tanderson@originalcode.com)