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Start here and then Google specifics. Good luck Generally though, you choose a licence and then mark the software as being covered by that licence (about box, licence file, etc) . Commercial offerings a bit harder though since you need to stop people using it if they have not bought a licence. Two ways you can look at it. A single piece of software that the user can choose from multiple licences (hard) or multiple, discrete, pieces of software have their own licence (easy). Non commercial is easy-just distribute a licence with the product. Commercial is harder-you need to cripple the software somehow when distributed and only become fully featured after a licence is purchased. You can either go it alone (web page and download) or via NI who have a couple of options. You would need to contact NI since they recently changed their sales model so I don't know what they are offering now, Depends on the licence-there are many. Not that I'm aware of. VIPM is an installer and distribution platform. If it's a commercial product then you will also need to look into the Third Party Licensing and Activation toolkit If you want a completely managed sales solution then speak with NI.

Lots of questions here, I will simply point you to vipm.io from when you'll be able to get VIPM related info. There are 4 'levels' of VIPM, free, community, pro and entreprise, see differences here https://www.vipm.io/download/ As far as I know VIPM is not a tool that will let you manage license subscription in your product, for this I think the best starting point is on NI forums : https://forums.ni.com/t5/Developer-Center-Resources/tkb-p/7307 As a side note, I think handling different types of licenses of your product is not an easy task, good luck with that!