24U Preferences+Globals is a FileMaker Pro plug-in which allows for storing and reading application-wide global variables and persistent system-wide preferences. Preferences remain stored on the user's hard disk, so they can be accessed by multiple applications. Useful especially for solutions designed to be launched directly from CD-ROM.
Global variables created with this plug-in are shared by all databases within one application, so you don't have to use any special global fields or relationships. Useful also for indication of multiple copies of the same database being opened.