2.2.2.4 IDSET and CNSET Structures

An IDSET structure contains a set of ID values. The ID values are one of the following types:

• Message ID structures ([MS-OXCDATA] section 2.2.1.2).

• Folder ID structures ([MS-OXCDATA] section 2.2.1.1).

• CN structures, as specified in section 2.2.2.1.

When an IDSET structure contains CNs, it is also known as a CNSET structure. In this section, the term IDSET is used to refer to both IDSET and CNSET structures.

The IDSET serialization format specified in the following sections is optimized for data transfer, and is not intended for in-memory operations. For details about the serialization and deserialization process, see section 3.1.5.4.