6 Appendix A: Product Behavior

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 XP operating system

  • Windows Vista operating system

  • Windows Server 2008 operating system

  • Windows 7 operating system

  • Windows Server 2008 R2 operating system

  • Windows 8 operating system

  • Windows Server 2012 operating system

  • Windows 8.1 operating system

  • Windows Server 2012 R2 operating system

  • Windows 10 operating system

  • Windows Server 2016 operating system

  • Windows Server 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 In Windows, except Windows XP, if the responder service started after the 802.11 connection became active, responders only include the 802.11 RSSI attribute once the responder service has been running for some time (approximately a minute for most wireless drivers).

<2> Section Some wireless drivers do not expose the RSSI but do expose a signal strength indicator between 0 and 100. Windows XP only reports the RSSI if available and does not include the attribute if it is not. Windows, except Windows XP, report the signal strength indicator as provided by the driver when the driver does not provide the actual RSSI.

<3> Section Windows XP operating system Service Pack 2 (SP2) includes the 802.11 Physical Medium attribute.

<4> Section Windows only sends ICO format images as a responder and only recognizes ICO format images as a mapper. For more information about ICO, see [MSDN-ICO].

<5> Section For a UPnP device, the required information comes from the UPnP device description phase that has the XML elements that Plug and Play Extension uses to derive the PnP hardware ID string. This property is the string that Plug and Play uses to match a device with an INF file on a Windows-based computer.

<6> Section 3:  Windows XP does not support the Enumerator role.

<7> Section 3: Windows XP does not support the Mapper role.

<8> Section 3: Windows clients, except Windows XP, support the QoS Controller role.

<9> Section 3: Windows clients, except Windows XP, support the Cross-Traffic Analysis Initiator role.

<10> Section  Windows, except Windows XP, stops the quick discovery process when the Seen Station List does not grow for three consecutive Block timer expirations.

<11> Section  Windows, except Windows XP, stops retrying communication with a responder after five consecutive per-responder response timer expirations.

<12> Section 3.3.1: Windows, except Windows XP, supports up to 10 network test sessions.

<13> Section  Windows, except Windows XP, supports transmission of arbitrary QosProbe frame size with randomized or zeroed content.

<14> Section Windows sets the period of inactivity at an aggressive 5 seconds.

<15> Section 3.8.1: Windows uses a byte scaling of 1 kilobyte and packet scaling of 1 packet.