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 released service packs.
Windows Vista operating system
Windows 7 operating system
Windows 8 operating system
Windows 8.1 operating system
Exceptions, if any, are noted below. If a service pack or Quick Fix Engineering (QFE) number appears with the product version, behavior changed in that service pack or QFE. The new behavior also applies to subsequent service packs of the product 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 1.3: Windows Media Center is the shell, Windows is the host which runs the shell, and Extenders for Windows Media Center is the client device.
<2> Section 1.4.2: Windows supports LLTD by default.
<3> Section 18.104.22.168: Media Center uses port 2177 for qWAVE/LLTD with Extenders for Windows Media Center.
<4> Section 22.214.171.124: Media Center on Windows Vista, Windows 7, Windows 8, and Windows 8.1 sends ShellDisconnect when Media Center shell exits.
<5> Section 126.96.36.199: Media Center on Windows Vista, Windows 7, Windows 8, and Windows 8.1 sends ShellIsActive when Media Center shell is initialized and ready to start UI.
<6> Section 188.8.131.52: Media Center on Windows Vista sends Heartbeat to the device every 5 seconds. Media Center on Windows 7, Windows 8, and Windows 8.1 sends Heartbeat to the device every 5 seconds and whenever Screensaver flag is set to 0x00000001.