just follow up to Digi support where you got the download link and password.
im not 100% sure if the download links came from a official support member - this was my original post: I need to revive a inherited NET+Works 6.3 based hardware project with an crippled XP VM - someone (that seems to be a supporter send me the links and passwords)
Typically you should have gotten a license key for 6.3 which might still work with 7.5
if it does not, you need to get a new license key.
thanks: i try to find someone in the original company that is mabye able to give me the old license key
Typically this is sold together with a development kit, so either buy one, or contact Digi sales if they can provide one for free given on the volume of your project
i think there is (needs to be) somewere a development kit around in the company originally developed that system decades ago - but now i got more ideas what to ask for
thx (from germany)