Howdy,
Since my name and extension appear in this thread, I felt obliged to reply
The FAQ in the post above was a working document and not meant to be shared externally, meaning there could be some mistakes in it. I would instead point you to an excellent application note on the NI Developer Zone called Using the LabVIEW Shared Variable. It answers most questions about the shared variable feature in LabVIEW.
As always, the NI support team is ready to help if there are any unanswered questions on the shared variable. Of course, if the shared variable is making your LV development life wonderful, I love hearing success stories, too.
Best regards,
Gerardo Garcia
National Instruments
LabVIEW Real-Time Product Manager