Can I extract the orginal VI's from an executable created by Runtime Engine?

I have an executable program created using the Labview Runtime engine and need to edit the subVI's contained within. Unfortunately, I don't have the original VI's the program was created with.
Is there any way I can extract those VI's?
Thanks,
Mike C.

First, LabVIEW 7.2 never existed.
Second, if you can't rename an exe into *.llb and open it in LabVIEW 7.1.1 (the latest official LabVIEW version before 8.0) and see a list of VIs then it's not a LabVIEW 7.1 or earlier executable file. What it may or may not be is another question!
But even if you can do that, all you can determine from this are the original VI names.  Theoretically you can also copy the VIs out with the Librarian VIs, but those VIs lack all source code, front panel, and even icon resources so if you place them on a diagram, you see a simple block with a question mark, can't double click it to open the front panel and definitely can't view the diagram because they are all gone! And it even only works if the LabVIEW version that was used to create the executable is the same than the version you try to open those stripped VIs in, since the compiled (binary) code is about the only thing left in the VI and has to match the version of LabVIEW in order for LabVIEW to consider it valid. Anything else would certainly cause crashes as the compiled code would attempt to call into LabVIEW functions that have been added later on or got changed between versions.
Rolf Kalbermatter
CIT Engineering Netherlands
a division of Test & Measurement Solutions

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