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 NT operating system

• Windows 2000 operating system

• Windows XP operating system

• Windows Server 2003 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 2.2.1.1: Windows Media Services on Windows NT 4.0 operating system, Windows Media Services on Windows 2000 Server operating system, and Windows Media Player 6 set the value of the dwIPAddress field to the client's IPv4 address.

<2> Section 2.2.1.1: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, and Windows Media Player 6 set the value of the szComputerDNS field to the DNS of the client machine.

<3> Section 2.2.3: Windows Media Services on Windows Server 2003 sets the value of the timeSent field from uninitialized memory, such that it can appear as an arbitrary value.

<4> Section 2.2.4.1: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the dwParam2 field from uninitialized memory so that it can appear as an arbitrary value.

<5> Section 2.2.4.2: Windows Media Services on Windows NT 4.0 and Windows 2000 Server set the value of the maxBitRate field from uninitialized memory, so that it appears as an arbitrary value.

<6> Section 2.2.4.3: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the playIncarnation field from uninitialized memory, so that it appears as an arbitrary value.

<7> Section 2.2.4.3: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the packetPayloadSize field from uninitialized memory, so that it appears as an arbitrary value.

<8> Section 2.2.4.3: Windows Media Services on Windows 2000 Server sets the funnelName field to be "Funnel Of The ".

<9> Section 2.2.4.4: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the playIncarnation field from uninitialized memory so that it can appear as an arbitrary value.

<10> Section 2.2.4.7: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the unused2 field from uninitialized memory so that it can appear as an arbitrary value.

<11> Section 2.2.4.10: Windows sets this field to either 0x00000000 or to the value of the openFileId field in the LinkMacToViewerReportOpenFile (section 2.2.4.7) message sent previously by the server.

<12> Section 2.2.4.12: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the dwStreamId field from uninitialized memory so that it can appear as an arbitrary value.

<13> Section 2.2.4.14: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server omit the basic-realm syntax element in the pToken field if a Basic authentication realm is unavailable. Windows Media Services on Windows Server 2003 does not support basic authentication.

<14> Section 2.2.4.16: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the playIncarnation field from uninitialized memory so that it can appear as an arbitrary value.

<15> Section 2.2.4.17: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server set the value of the playIncarnation field from uninitialized memory so that it can appear as an arbitrary value.

<16> Section 2.2.4.17: Windows Media Player 6, Windows Media Services on Windows NT 4.0, and Windows Media Services on Windows 2000 Server do not include the host-param or host-string syntax elements in the subscriberName field. Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP include the host-param syntax element in the subscriberName field, but not the host-string syntax element.

<17> Section 2.2.4.17: In Windows, the clients assign the values of the client-token according to the following table:

<18> Section 2.2.4.18: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server set the values of the playIncarnation, maxBlockBytes, maxFunnelBytes, and maxBitRate fields from uninitialized memory so that they can appear as arbitrary values. Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the playIncarnation field from uninitialized memory so that it can appear as an arbitrary value.

<19> Section 2.2.4.21: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the spare field from uninitialized memory so that it can appear as an arbitrary value.

<20> Section 2.2.4.22: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the dwParam1 field from uninitialized memory so that it can appear as an arbitrary value.

<21> Section 2.2.4.22: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the dwParam2 field from uninitialized memory so that it can appear as an arbitrary value.

<22> Section 2.2.4.23: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server set the value of the length field to 0x0000FFFF.

<23> Section 2.2.4.23: Windows Media Services on Windows NT 4.0, Windows 2000 Server, and Windows Server 2003 set the value of the padding field from uninitialized memory so that it can appear as an arbitrary value.

<24> Section 2.2.4.25: Windows Media Services on Windows NT 4.0, Windows Media Serviceson Windows 2000 Server, and Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the padding field from uninitialized memory so that it can appear as an arbitrary value.

<25> Section 2.2.4.26: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the frameOffset field from uninitialized memory so that it can appear as an arbitrary value.

<26> Section 2.2.4.27: Windows Media Services on Windows NT 4.0, Windows Media Serviceson Windows 2000 Server, and Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, Windows Media Player for Windows XP, Windows Media Format 9 Series SDK, and Windows Media Format 9.5 SDK set the value of the playIncarnation field from uninitialized memory so that it can appear as an arbitrary value.

<27> Section 3.1.4.1.1: How the user configures Windows Media Player or the Windows Media Format SDK determines if the same GUID is used for all sessions or is changed between sessions.

<28> Section 3.1.4.2: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server never send a LinkViewerToMacStreamSwitch (section 2.2.4.28) message.

<29> Section 3.1.4.2: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server never send a LinkViewerToMacStartStriding (section 2.2.4.26) message.

<30> Section 3.1.4.2.1: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP set the value of the playIncarnation field in the LinkViewerToMacStartPlaying (section 2.2.4.25) message to the current value of the Incarnation variable in the abstract data model; then they increment the value of the variable.

<31> Section 3.1.4.2.1: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, and Windows Media Player 6 do not include the dwAccelDuration, dwAccelBandwidth, and dwLinkBandwidth fields in the LinkViewerToMacStartPlaying (section 2.2.4.25) message.

<32> Section 3.1.4.2.2: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP set the value of the playIncarnation field in the LinkViewerToMacStartStriding (section 2.2.4.26) message to the current value of the Incarnation variable in the abstract data model; then they increment the value of the variable.

<33> Section 3.1.4.4: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server never send a LinkViewerToMacStreamSwitch (section 2.2.4.28) message.

<34> Section 3.1.4.4: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server never send a LinkViewerToMacStartStriding (section 2.2.4.26) message.

<35> Section 3.1.4.5: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server do not send a LinkViewerToMacLogging (section 2.2.4.20) message.

<36> Section 3.1.4.8: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server do not send a LinkViewerToMacCloseFile (section 2.2.4.16) message.

<37> Section 3.1.5.3: Windows Media Player 6 uses the URL specified in the value of the VersionUrl field to download an update, but only if the version number specified by the VersionInfo field is greater than the current version number of Windows Media Player.

<38> Section 3.1.5.3: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server always send a LinkViewerToMacConnectFunnel (section 2.2.4.18) message in response to the LinkMacToViewerReportConnectedEX (section 2.2.4.2) message.

<39> Section 3.1.5.6: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP set the value of the playIncarnation field in the LinkViewerToMacOpenFile (section 2.2.4.21) message to the current value of the Incarnation variable in the abstract data model, and then they increment the value of the variable.

<40> Section 3.1.5.6: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP include authentication data in the tokenData field if such authentication has been cached from a previous authentication attempt.

<41> Section 3.1.5.7: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, and Windows Media Player 6 do not support the LinkMacToViewerReportRedirect (section 2.2.4.9) message.

<42> Section 3.1.5.8: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, and Windows Media Format 7.1 SDK do not update the value of the Auth-Scheme variable when processing a LinkMacToViewerSecurityChallenge message.

<43> Section 3.1.5.8: Windows Media Services on Windows NT, Windows 2000 Server, and Windows Server 2003 will only send the LinkMacToViewerReportRedirect message if instructed to do so by a plugin.

<44> Section 3.1.5.9.1: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, Windows Media Player 6, Windows Media Format 7.0 SDK, Windows Media Format 7.1 SDK, and Windows Media Player for Windows XP set the value of the playIncarnation field in the LinkViewerToMacReadBlock (section 2.2.4.23) message to the current value of the Incarnation variable in the abstract data model; then they increment the value of the variable.

<45> Section 3.1.5.9.1: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server never start the Header timer.

<46> Section 3.1.5.18: Windows Media Services on Windows NT 4.0, Windows Media Services on Windows 2000 Server, and Windows Media Player 6 do not send a LinkViewerToMacLogging message.

<47> Section 3.2.4.1: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server always set the value of the hr field to 0x00000000.

<48> Section 3.2.4.2: Windows Media Services on Windows NT 4.0 and Windows Media Services on Windows 2000 Server always ignore the value of the dwLinkBandwidth field.

<49> Section 3.2.5.11: This feature is supported only by Windows Media Services on Windows Server 2003, and the actual bit rate and duration used by the server can be smaller than what is requested by the client, depending on how the administrator has configured the server.