The PR_CONTAINER_CLASS property was originally meant to contain a text string describing the type of a folder.
| Header file: | MAPITAGS.H |
| Identifier: | 0x3613 |
| Property type: | PT_TSTRING |
| Property tag: | 0x3613001E (0x3613001F for Unicode) |
Do not use this property. It is not supported in MAPI 1.0.