The subkeys and registry values associated with the HKEY_LOCAL_MACHINE\SOFTWARE\Classes key contain information about an application that is needed to support COM functionality. This information includes such topics as supported data formats, compatibility information, programmatic identifiers, DCOM, and controls.
|Configuration options for COM-based applications.
|Configuration options for COM classes.
|Associates a file name extension with a ProgID.
|Used by GetClassFile to match patterns against various file bytes in a non-compound file.
|Associates an interface name with an interface ID (IID).
|Identifies a class. Note that the ProgID is not guaranteed to be globally unique, unlike a CLSID.
|Used to determine the latest version of an object application.