It's a compatibility thing. Most applications will completely ignore the "Name" column in the Registry and instead they will get the name of the font from the font file itself. You can call them whatever you want in the registry and most apps won't care.

Some much older apps may use this list, but it's really only there for Windows to enumerate the file names for the applications requesting the current fonts available to the system, so it's really only the "Data" column that matters.

It's a backward compatibility thing. Most applications will completely ignore the "Name" column in the Registry and instead they will get the name of the font from the font file itself. You can call them whatever you want in the registry and most apps won't care.

Some much older apps may use the names in the first column, but this registry key is really only there so Windows can enumerate the file names, which it provides when applications request a list of the fonts available to the system, so it's really only the "Data" column that matters.