| ObjectCreationInfo | The ObjectCreationInfo class is used for specifying the initial state of the new metadata card. |
| ObjectFile | The ObjectFile class extends the file and adds the parent information. |
| ObjectWindowResult | The ObjectWindowResult class encapsulates the return values of showing the metadata card. |
| DialogUIParams | Data structure for show popup dashboard UI params. |
| Facet | Search Facet. |
| ExcludedIds | Excluded Ids. |
| FacetDefinition | Definition of Facet. |
| FacetStringValue | String Value type for Facet Value. |
| FacetNumericRangeValue | Numeric Range Value for Facet Value. |
| FacetNumericValue | Facet Numeric Value. |
| FacetLookupValue | Facet Lookup based Value. |
| FacetValue | |
| MFError | DesktopError class that extends the Error class. this class is used for ReportException function. |
| ObjectFileVersionParams | Argument for function SelectObjectOrObjectFileVersion |
| SearchCriteria | Represents Search Criteria. |
| ShellframeFolders | Argument for the IShellFrame NavigateToFolder |
| ShowMessageParams | Data structure returned by the ShowMessage call. |
| ShowMessageReturnValue | Data structure returned by the ShowMessage call. |
| VaultInfoReturnValue | Return value for the GetVaultInfo method. |