The VISA serial read did not report any errors however I will try enabling debugging to try and track it down. Is there a reason why it would work as a vi and not as an application? Does the compiler handle the code differently?
I had a similar-ish problem once, I needed to install RTE from the same version (labview 11), and a Visa-Run time program, that solved my problem, hope it helps
Generally, the code should work the same. The code in the development environment is also compiled but when recompiled during the build, it's possible that mistakes in the code could appear. Misuse of local variables is one such problem. Can you attach the code.
