Q: I have FileMakerPro 6 and 7 on the same machine. How can I be sure I open the right one ?

A: With fm = app('FileMaker Pro') or fm = app('FileMaker Pro.app'), you'll never know. Use fm6 = app(id='com.filemaker.filemakerpro') for FileMakerPro 6 and fm7 = app(id='com.filemaker.pro7') for FileMakerPro 7.