7.5 http://schemas.microsoft.com/office/Broadcast/Server/WebServices/BroadcastParticipantService/ Schema

 <?xml version="1.0" encoding="UTF-8"?>
 <xs:schema elementFormDefault="qualified" targetNamespace="http://schemas.microsoft.com/office/Broadcast/Server/WebServices/BroadcastParticipantService/" xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:import namespace="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Interface.Data"/>
   <xs:import namespace="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Pipe.Interface"/>
   <xs:element name="BroadcastJoinSession">
     <xs:complexType>
       <xs:sequence>
         <xs:element minOccurs="0" name="sessionId" nillable="true" type="xs:string"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastJoinSessionResponse">
     <xs:complexType>
       <xs:sequence>
         <xs:element xmlns:tns2="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Pipe.Interface" minOccurs="0" name="BroadcastJoinSessionResult" nillable="true" type="tns2:ServiceResult"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastUnjoinSession">
     <xs:complexType>
       <xs:sequence>
         <xs:element minOccurs="0" name="sessionId" nillable="true" type="xs:string"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastUnjoinSessionResponse">
     <xs:complexType>
       <xs:sequence>
         <xs:element xmlns:tns2="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Pipe.Interface" minOccurs="0" name="BroadcastUnjoinSessionResult" nillable="true" type="tns2:ServiceResult"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastGetData">
     <xs:complexType>
       <xs:sequence>
         <xs:element xmlns:tns1="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Interface.Data" minOccurs="0" name="user" nillable="true" type="tns1:BroadcastUser"/>
         <xs:element minOccurs="0" name="sequenceNumber" type="xs:int"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastGetDataResponse">
     <xs:complexType>
       <xs:sequence>
         <xs:element xmlns:tns2="http://schemas.datacontract.org/2004/07/Microsoft.Office.Server.Broadcast.Pipe.Interface" minOccurs="0" name="BroadcastGetDataResult" nillable="true" type="tns2:ServiceResult"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastPing">
     <xs:complexType>
       <xs:sequence/>
     </xs:complexType>
   </xs:element>
   <xs:element name="BroadcastPingResponse">
     <xs:complexType>
       <xs:sequence>
         <xs:element minOccurs="0" name="BroadcastPingResult" type="xs:boolean"/>
       </xs:sequence>
     </xs:complexType>
   </xs:element>
 </xs:schema>