| 0x08 | Keywords | long | 2 flags |
| 0x08 | KeywordCount | SizeT | 2 flags |
| 0x04 | JoinRestriction | XblMultiplayerSessionRestriction | 1 flags |
| 0x04 | ReadRestriction | XblMultiplayerSessionRestriction | 1 flags |
| 0x08 | TurnCollection | long | Private+1 flags |
| 0x08 | TurnCollectionCount | SizeT | Private+1 flags |
| 0x08 | MatchmakingTargetSessionConstantsJson | UTF8StringPtr | 2 flags |
| 0x08 | SessionCustomPropertiesJson | UTF8StringPtr | 2 flags |
| 0x08 | MatchmakingServerConnectionString | UTF8StringPtr | 2 flags |
| 0x08 | ServerConnectionStringCandidates | long | Private+1 flags |
| 0x08 | ServerConnectionStringCandidatesCount | SizeT | Private+1 flags |
| 0x08 | SessionOwnerMemberIds | long | Private+1 flags |
| 0x08 | SessionOwnerMemberIdsCount | SizeT | Private+1 flags |
| 0x28 | HostDeviceToken | XblDeviceToken | 2 flags |
| 0x01 | Closed | bool | 1 flags |
| 0x01 | Locked | bool | 1 flags |
| 0x01 | AllocateCloudCompute | bool | 1 flags |
| 0x01 | MatchmakingResubmit | bool | 1 flags |
| 0x008C | 0x04 | unreflected bytes to end of XblMultiplayerSessionProperties |