3.1.4.5.3 Reading ToDoFolderVersion

The client MUST read the value of the ToDoFolderVersion subproperty from the To-Do Search folder before it displays the contents of that folder. If the To-Do Search folder does not exist, does not contain this subproperty, or does not contain the required value as defined in section 2.2.7, then the client MUST re-create the To-Do Search folder, as specified in [MS-OXOSFLD] section 3.1.4.1.2, or reset the criteria of the search folder.