"... Can I make my code so that it can not be reversed engineered if not what is the best way to do that. "
 
AS one who has reverse engineered code, I can answer "No, there is nothing you can do to to stop someone from reverse engineering it."
 
BUT
 
You can make it very impractical.
 
1) Password protect your source code and do not share it with anyone.
 
2) Make sure you do not enable debugging in the exe.
 
See Jim Kring's thoughts on this matter<a href="http://thinkinging.com/2007/08/19/password-protecting-vis-is-security-through-obscurity/" target="_blank"> here</a>.
&nbsp;
Ben
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This thread is a cross post from LAVA found<a href="http://forums.lavag.org/Distribtuion-of-Labview-Code-t9543.html&amp;pid=38598#entry38598" target="_blank"> here</a>. Message Edited by Ben on 11-14-2007 02:50 PM