I don't know if there is another way of calling 32 bit code inside a 64 bit process, but I can't say I studied the issue. I'm fairly sure the process you described should work, as I seem to recall doing it between executables and even across machines to RT targets and across different LV versions.
I would suggest doing it in stages and trying to get as much info about what's happening as possible. For example:
- Start with a simplified example with minimal dependencies.
- See if it works when running in LV.
- See if it works from LV 32 bit to the 32 bit EXE.
- See if it works inside the same executable (and then you don't need to open the application reference).
- Make sure you have error indicators.
- Use property nodes on the application reference to make sure you connected to the correct application (two processes shouldn't be listening on the same port).
- Open the FP of the VI inside the 32 bit EXE to see what happens with it.
If at some point you have something working and then it doesn't work at the next stage, you know you did something to break it.
___________________
Try to take over the world!
