Hello vgravel,
The .iak file holds the configuration data for a FieldPoint bank, generally, you use and modify the iak file through Measurement and Automation Explorer, which should be installed when you install the FieldPoint driver.
From your post, I was unclear on whether you had included your iak file in your executable,
this KB gives the process of creating a FieldPoint Executable in LabVIEW. Here's
another helpful KB about distributing FieldPoint applications.
Note: you will need to use the same version of FieldPoint on the test machine as your development machine.
Post again if you are still having trouble,
Micaela N
National Instruments