Standard component category manager

Question

Hi,

 I have stuck while retrieving all registered COM components (like references/components in VB IDE) in a single or easy way, So I added "comcat.h" in my project and using "stdComponentCategoriesMgr" I'm getting registered CLSID but it is category wise and implemented all CATID one by one.

EXTERN_C const CATID CATID_Insertable;
EXTERN_C const CATID CATID_Control;
EXTERN_C const CATID CATID_Programmable;
EXTERN_C const CATID CATID_IsShortcut;
EXTERN_C const CATID CATID_NeverShowExt;
EXTERN_C const CATID CATID_DocObject;
EXTERN_C const CATID CATID_Printable;
EXTERN_C const CATID CATID_RequiresDataPathHost;
EXTERN_C const CATID CATID_PersistsToMoniker;
EXTERN_C const CATID CATID_PersistsToStorage;
EXTERN_C const CATID CATID_PersistsToStreamInit;
EXTERN_C const CATID CATID_PersistsToStream;
EXTERN_C const CATID CATID_PersistsToMemory;
EXTERN_C const CATID CATID_PersistsToFile;
EXTERN_C const CATID CATID_PersistsToPropertyBag;
EXTERN_C const CATID CATID_InternetAware;
EXTERN_C const CATID CATID_DesignTimeUIActivatableControl;

Yet I'm not getting all registered COM components CLSID, specially when I search for how many "msxml" versions has been installed in my system.

How do I get all registered COM components CLSID or beside the way about I followed "stdComponentCategoriesMgr".
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Language : Native VC++