Labview 2011 application crashes from time to time

Question

Hi together,
from time to time my LV application crashes. This happens in different stages of the program.
I use some ext. DLLs written in C, some simple IO hardware and some serial communications with ext. hardware.
My feeling is that it has s.th. to do with the upgrade from LV 851 to  LV 2011, but I'm not sure.
On target PC and on develpment PC we're using WXP Pro. SP3.
Many Thanks.

Answer 1

The crash dialog from LV indicates (most common reason) an unhandled exception thrown by a component used in your application. Therefore, the OS shuts down the process of this exception, in your case LV.
From experience, external code is a prominent source for such exceptions. You should try removing all DLL calls as a first step for pin-pointing the source of the crash. If the crash is not occuring anymore, it is most likely that a call has invalid parameters (e.g. empty array instead of a predefined buffer).
Try to boil down the issue as much as possible. To be honest, this could be a very time consuming issue, but you have little to no choice i assume.
Sidenote: Do you have the Desktop Execution Trace Toolkit? If yes, run it and observe memroy allocations, reference leaks and unhandled errors as primary parameters.
Norbert
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