The following structures are used by the IIS Admin Base Object methods.
| MD_CHANGE_OBJECT | Stores information about changes made to a key in the metabase. |
| METADATA_RECORD | Specifies or receives a single metabase data entry. |
| METADATA_GETALL_RECORD | Member of an array that receives multiple metabase entries. |
| METADATA_HANDLE_INFO | Stores information about a handle to the metabase. |