[fsfod]

I thought the whole point of the hash was it could change arbitrarily with windows updates to stop programs reverse engineering it and then setting file associations or browser choice directly in the registry.

Although not sure if it has ever changed before though just by quickly scanning the change log for this app people were using to set it https://kolbi.cz/blog/2017/10/25/setuserfta-userchoice-hash-...