http://bugs.winehq.org/show_bug.cgi?id=11806
--- Comment #17 from Alexandre Julliard julliard@winehq.org 2008-05-13 06:06:16 --- (In reply to comment #16)
Still, I'd expect empty strings to be written as "", not as hex(1):, because that's what I see in registry files from MS-Windows.
Maybe in a text file exported from regedit, but in the actual registry files they have to be stored as hex(1):. which is not the same thing as an empty string (a proper empty string contains one null character).