Hi Don,
I don't think you can "wire" an executable. However, you have two options:
1. Call the EXE using the SystemExec VI, and pass argumenst to it when doing so. You will have to obviously modify the EXE code to read the arguments that are passed to it. And enable argument-passing when building the EXE.
2. Build a LabVIEW-DLL instead of an EXE. You can call the DLL from within your VI. If you decide to go this route, you may find the following useful:
[broken link removed; article no longer available]
-Khalid
