You don't say whether this is a built application (EXE) or not. If it's an EXE you should be able to install it on as many computers as you want along with any hardware drivers that it might need (i.e. GPIB, DAQ). Things get a little tricky if you're using the LabVIEW development system to run the program. If you have a LabVIEW license for the old computer and want to run it on another computer at the same time, then you would need another LabVIEW license for each computer that you want to install it on. You could also create a generic EXE that loads any top level VI and in that case you would not need any addtional licenses I believe.
