1999, Woody Leonhard, Barry Simon, The mother of all Windows 98 books→ISBN, page 720
Spaces are significant (Primary Provider is different from PrimaryProvider), but capitalization is not (PrimaryProvider is the same as primaryprovider). In Windows 95, Registry key name capitalization flip-flopped all over the place.
2002, Information Retrieval Techniques for Speech Applications, page 19:
First, there are errors in the original document, including incorrect capitalization (e.g. 'Madeline Albright' is not capitalized) and spelling errors […] manually corrected using a fixed set of rules for capitalization and uniform spelling […]
