For express use HKEY_CURRENT_USER\Software\Microsoft\VSWinExpress\11.0\GeneralSuppressUppercaseConversion:
HKEY_CURRENT_USER\Software\Microsoft\VSWinExpress\11.0\GeneralSuppressUppercaseConversion
Credit "FormatC" atto http://www.richard-banks.org/2012/06/how-to-prevent-visual-studio-2012-all.htmlFormatC