VWinds Contrabass Flute comes with its own sample player, the UVI Workstation 3 (requires v3.1.6 or later).
We provide it for free with every library that you buy, you don't need to buy an expensive sampler to use our products. It works on Mac (10.14 or later intel or arm processor) and PC (windows 10 or later), in standalone or as a plugin (VST / VST3 / AU / AAX ) and in 64 bits only. You can find more info about it here.

We use the iLok system to protect our products and you can choose to register your license to your computer or to an iLok dongle.
If you decide to use an iLok dongle, both V1 and V2 are compatible with our products.
You can activate your license on up to 3 computers or iLok dongles at the same time and you can deactivate one and activate another as many times as you want.