duehli

If anybody is interested, I found the solution. The trick is, use the real IP address of the machine (or its name) in "Open Application Reference". Using "localhost", "127.0.0.1", "" will all return a reference to the application, regardless of the port specified. But when using the real IP/name it will actually open a TCP connection and you can choose by port which reference you want. Like this you can call VIs in LabVIEW from your built application. :thumbup:

I'm having the same problem, but Rolf's solution doesn't help in my situation. I have an application built in LabVIEW 7.1. Users can write plugins for that application, they are called exactly like Rolf suggested. But now one user has only LabVIEW 7.0. As these plugins are loaded into application memory space (LV runtime 7.1) the VI doesn't execute. As a solution, I'd like to call the VI directly in the development environment. But I guess, as Neville D said, this isn't possible. Any suggestions? Thanks, Daniel