6 Appendix A: Product Behavior

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The information in this specification is applicable to the following Microsoft products or supplemental software. References to product versions include updates to those products.

  • Windows Server 2008 operating system

  • Windows Server 2008 R2 operating system

  • Windows Server 2012 operating system

  • Windows Server 2012 R2 operating system

  • Windows Server 2016 operating system

  • Windows Server operating system

  • Windows Server 2019 operating system

  • Windows Server 2022 operating system

  • Windows Server 2025 operating system

Exceptions, if any, are noted in this section. If an update version, service pack or Knowledge Base (KB) number appears with a product name, the behavior changed in that update. The new behavior also applies to subsequent updates unless otherwise specified. If a product edition appears with the product version, behavior is different in that product edition.

Unless otherwise specified, any statement of optional behavior in this specification that is prescribed using the terms "SHOULD" or "SHOULD NOT" implies product behavior in accordance with the SHOULD or SHOULD NOT prescription. Unless otherwise specified, the term "MAY" implies that the product does not follow the prescription.

<1> Section 2.2.5: In Windows 7 operating system,Windows Server 2012, and Windows Server 2012 R2, if the WDS Multicast Session Initiation Protocol, as specified in [MS-WDSMSI], provides a User SID, then the client sends the same value using WDSMCTP_OPT_USER_SID Extended Option.

<2> Section 2.2.5: Windows 7, Windows Server 2012, and Windows Server 2012 R2 always send WDSMCTP_OPT_CAPABILITIES Extended Option.

<3> Section 2.2.5.1: Windows 7, Windows Server 2012, and Windows Server 2012 R2 always set WDSMCTP_CAP_MULTISTREAM.

<4> Section 2.2.8.4: Windows 7, Windows Server 2012, and Windows Server 2012 R2 send the WDSMCTP_OPT_CPU_UTIL Extended Option.

<5> Section 2.2.8.4: Windows 7, Windows Server 2012, and Windows Server 2012 R2 send WDSMCTP_OPT_MEM_UTIL Extended Option.

<6> Section 2.2.8.4: Windows 7, Windows Server 2012, and Windows Server 2012 R2 send WDSMCTP_OPT_NET_UTIL Extended Option.

<7> Section 2.2.16: Windows Server 2012 and Windows Server 2012 R2 send the WDSMCTP_OPT_ODATA_FW_LEAD_SEQ_NO Extended Option.

<8> Section 3.2.5.3: In Windows 7, Windows Server 2012, and Windows Server 2012 R2, if the WDS Multicast Session Initiation Protocol, as specified in [MS-WDSMSI], provides a User SID, then the client sends the same value using DSMCTP_OPT_USER_SID Extended Option.

<9> Section 3.2.5.3: Windows 7, Windows Server 2012, and Windows Server 2012 R2 always send the WDSMCTP_OPT_CAPABILITIES Extended Option.

<10> Section 3.2.5.13: Windows Server 2012 and Windows Server 2012 R2 WDS clients process the WDSMCTP_OPT_ODATA_FW_LEAD_SEQ_NO Extended Option per this recommendation.