In LabVIEW 7 Express you should be able to update front global variables inside built executables. Attached is a small example of how global variables are being updated with the data from front panel controls. This VI should run as both a standalone VI and as an executable.
One thing to keep in mind is that global variables do not work when they are shared between multiple executables or between executables and normal LabVIEW VIs. They do not work in this situation because each executable has its own memory space that houses its global variables and other applications are not allowed to access this memory. Please see the KnowledgeBase,
Can I Use a Global Variable to Share Data between Two LabVIEW Executables?, for more information on this issue.
Regards,
Matt Friedman
Applications Engineer
National Instruments