Difference between Interface ID and Object ID

Thanks a lot.

But i also have doubt regarding COM concepts.

What is the role of getfactory in MFC-COM?

Can u please clarify my doubt on this.

HI,

GetFactory mehod returns an instance of the specified data provider.

syntax for that is

public static DataProviderFactory GetFactory( 
   string providerName,
   DataProviderInfo[] dataProviders
)