Convert an EXE back to a VI?

Hello all,
I'm just getting started with Labview. My question is in regards to the possiblity of converting an EXE back to a VI. We have diagnostic software that we use on our equipment and would like to make some modifications to some timing features due to recent hardware/software upgrades. We'd also like to switch most of the current hardware (ISA DAQ's) to a more modern portable setup (preferably PCMCIA or USB DAQ's). Is it possible to convert back to VI's so we can make the changes or do we need to start from scratch and rewrite the VI's? The originals were written a long time ago and the engineers are long since gone.
Wayne

I seem to recall reading about some little tricks you can use to get some information from the EXE - something about using LabVIEW to get the name of all VIs in memory. That will just get you names of the subVI calls, though, and I'm guessing that wouldn't be terribly helpful.
At least you can take some comfort in knowing that converting something that ran on ISA DAQs would probably require some pretty substantial rewriting anyway to work with modern stuff . (And if you want to hire someone to do it for you, there's always the Jobs forum down below.)
Message Edited by kehander on 01-31-2008 01:44 PM

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================ CODE FOLLOWS ======================
import java.io.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import com.sun.crypto.provider.SunJCE;
import sun.misc.*;
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* Stuck here! Once the key is reformed it will be complete!
}

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when you create the Cipher objects).
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