Issue with Memory Mapping Functionality in Executable Version

[Anil@2024]

I am encountering an issue with my code when transitioning from a development environment to an executable (.exe) file. The code works perfectly fine during development in LabVIEW 2018 SP1, where memory mapping functions as expected, and I am able to receive addresses and related data correctly. However, once I compile the code into an executable, the memory mapping functionality fails. Specifically, the addresses are not being received, and the related data does not seem to be passed or accessed as expected in the executable version.

The memory mapping code works properly when running the application from the development environment, but the issue arises only after the code is compiled into an executable format. It’s worth noting that all other functionalities of the application work correctly in the executable version, as they do in the development environment, but the memory mapping functionality is the only one that does not behave as expected.

I am unsure of the root cause, but suspect it may be related to how the compiled executable handles memory or system-level operations differently compared to the development environment.

I am seeking guidance on how to address this issue and ensure that memory mapping continues to work as intended once the code is compiled into an executable. I would appreciate any insights or suggestions for resolving this issue, as I need the memory mapping functionality to work properly in the executable version as well.

[Andrey_Dmitriev]

I've used memory mapping in only one project, and finally, it worked like a charm back in LV2010 (after a series of crashes during development and debugging). It's hard to say without seeing your code; it could be anything, but there should be a reason — maybe race conditions due different timing in dev env and runtime, maybe something else. If you have a zero address, then you should trace it back to the DLL; perhaps some error was raised here. Usually, in similar cases I use "intrusive debugging" with the OutputDebugStringA() function to get log messages from both DLLs and LabVIEW into the same log and side by side analysis of the differences between dev and runtime.