https://bugs.winehq.org/show_bug.cgi?id=40196
--- Comment #7 from Hugh McMaster hugh.mcmaster@outlook.com --- (In reply to Nikolay Sivov from comment #6)
I can't create http in HKCR, because it does actually exist, so error message is correct. Not sure what original report was about. Could it be 32/64 bit issue?
It seems that many keys in HKCR, including "http", were not being displayed in regedit for some reason. These keys did actually exist, which is why the error message occurred.
But it looks like this bug was fixed somewhere between Wine 2.0-rc5 and Wine 2.8.