Looks like you answered your own question as it appears to a be a software controlled licensing limitation.
It's possible with some of these types of software limitations to find the .ini file it loads on your pc & change it's registration status.
Eg; it will have in the file something like; Reg Stat= nil or null or no or 0.
So you change it to; Reg Stat= positive or yes or 1.
It may also require a registry adjustment.
The only easy way to know for sure is to see a reg status in a valid registered file.
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