> #define DBINITCONSTANTS file://Initialize OLE DB constants...
> #define INITGUID        // ...once in each app

> #include <afxwin.h>     // For shameless use of CString
> #include <comdef.h>
> #include <string.h>
> #include <stdio.h>

> #include <oledb.h>      // OLE DB include files
> #include <oledberr.h>
> #include <msdaguid.h>   // ODBC provider include files
> #include <msdasql.h>    // MSDASQL include files
> #include <sqloledb.h>   // SQLOLEDB include files
> #include <MSjetoledb.h> // MSJETOLEDB include files
> #include <msdaora.h>    // MSDAORA include files
> #include <msdasc.h>        // OLE DB Service Components

>    CoInitialize(NULL);

>    // Obtain Access To The OLE DB - ODBC Provider

>    file://CoCreateInstance(CLSID_MSDASQL, NULL, CLSCTX_INPROC_SERVER,

> //      IID_IDBInitialize, (void **) &pIDBInitialize);

> // Create an instance of the OLE DB Initialization Component.
>  CoCreateInstance(CLSID_MSDAINITIALIZE, NULL, CLSCTX_INPROC_SERVER,
>   IID_IDataInitialize,(void**)&pIDBInitialize);

> // Create an instance of CLSID_MSDASQL with supported Services.
>  pIDBInitialize->CreateDBInstance(CLSID_MSDASQL, NULL,
>  CLSCTX_INPROC_SERVER, NULL, IID_IDBInitialize,
>   (IUnknown**)&pIDBInitialize);

> Thanks in advance!