The Undo (Ctrl-z) menu option is not available in stand alone applications built in LabVIEW.
The LabVIEW help confirms this: http://zone.ni.com/reference/en-XX/help/371361G-01/lvdialog/application_item_tag s/
Look where it says: "Items followed by two asterisks (**) are available in stand-alone applications you build in LabVIEW."
Then look for Undo and Redo in the Edit menu and you will see that they are not followed by the (**).
I posted the code that I created to implement Undo for exes: http://decibel.ni.com/content/docs/DOC-14805, but I believe we should be able to use the "Application Tags" instead of having to create code for something that is already implemented in the Development environment.
