Evaluation mechanism for LabVIEW program

[mcclements]

If I want to sell LabVIEW VIs on the internet how can I let people evaluate them for a finite time just as is the case for other software packages that allow users a certain trial time before having to pay a fee?

[Dennis_Knutson]

The same question was asked last week. See the posting here. Inside your VI have a CIN, DLL, or password protected VI that does the checking. Another option might be to use the remote panel feature of 6.1 and allow prospective buyers to just run the VI but not download it.