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[This is preliminary documentation and subject to change.]
Requirement (Designed for Microsoft® Windows® Logo)
Native data file types (if applicable) must be registered as follows:
[HKEY_CLASSES_ROOT]
.(file type extension)
(Default) = REG_SZ:FileTypeID
For further details on registering file types and application data, see the Windows Interface Guidelines for Software Design, Chapter 10 (available from Microsoft® Press®).
Gaming applications are exempt from this requirement.