[Jim E]

All NI products activate with the same serial number.

Once NI sends you the license file, place it in the directory:

C:\Program Files\National Instruments\Shared\License Manager\Licenses

The next time you start the particular program, it will activate automatically.

I almost forgot, make sure the file is license.lic and not license.lic.txt.

Windows tends to hide the file type when displaying files.