PtypMultipleString (0x101F) Value Encoding

Multi-valued Unicode string encodings start with an integer count encoding followed by the specified number of Unicode string value encodings. The count encoding is encoded in the same way that PtypInteger32 ([MS-OXCDATA] section 2.11.1) is encoded. The individual string encodings are encoded in the same way that PtypString ([MS-OXCDATA] section 2.11.1) is encoded. Strings MUST be case-insensitive. All values MUST be unique. Values can appear in any order. All strings MUST NOT be zero length or empty.

For more details about the PtypMultipleString data type see [MS-OXCDATA] section 2.11.1.