// Not currently supported: IPropertyStore

    // Not currently supported: IPropertyStore

    // Not currently supported: IPropertyStore, IFileOperationProgressSink

interface IPropertyStore

Public Interface IPropertyStore

static extern int PSGetItemPropertyHandler(IShellItem punkItem, bool fReadWrite, ref Guid riid, out IPropertyStore ppv);

IShellItem, IPropertyStore

public static IPropertyStore GetPropertyStoreFromShellItem(IShellItem shellitem, bool fReadWrite)

     IPropertyStore result = null;

        [Out] out IPropertyStore propertyStore);

    public static PropertyKey UI_PKEY_FontProperties = new PropertyKey(new Guid(Convert.ToString(300, 16).PadLeft(8, '0') + UI_PropertyKey), (int)VarEnum.VT_UNKNOWN); // IPropertyStore

    public static PropertyKey UI_PKEY_FontProperties_ChangedProperties = new PropertyKey(new Guid(Convert.ToString(312, 16).PadLeft(8, '0') + UI_PropertyKey), (int)VarEnum.VT_UNKNOWN); // IPropertyStore