LabVIEW V'sI containing TestStand API saved on different Windows versions

Hi.

I have a question regarding saving and loading of LabVIEW VI's that contains calls to the TestStand API in different versions of Windows:

Can it be true that if I create such a VI in e.g. 64 bit Windows 7 and then load it in 32 bit Windows 7 or XP with the exact same versions of LabVIEW and TestStand, the VI will need to be recompiled?

I am currently using LabVIEW 2012 SP1 f9 and TestStand 2012 SP1 f1.

Best regards

Jens Christian Andersen.