<?xml version="1.0" encoding="utf-8"?>
<xs:schema attributeFormDefault="unqualified" elementFormDefault="qualified"
           xmlns:xs="http://www.w3.org/2001/XMLSchema"
           targetNamespace="http://schemas.microsoft.com/appx/manifest/com/windows10/2"
           xmlns="http://schemas.microsoft.com/appx/manifest/com/windows10/2"
           xmlns:t="http://schemas.microsoft.com/appx/manifest/types"
           xmlns:f="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
           xmlns:com="http://schemas.microsoft.com/appx/manifest/com/windows10"
           xmlns:com3="http://schemas.microsoft.com/appx/manifest/com/windows10/3"
           xmlns:uap10="http://schemas.microsoft.com/appx/manifest/uap/windows10/10"
           >

  <xs:import namespace="http://schemas.microsoft.com/appx/manifest/types"/>
  <xs:import namespace="http://schemas.microsoft.com/appx/manifest/foundation/windows10"/>
  <xs:import namespace="http://schemas.microsoft.com/appx/manifest/com/windows10"/>
  <xs:import namespace="http://schemas.microsoft.com/appx/manifest/com/windows10/3"/>
  <xs:import namespace="http://schemas.microsoft.com/appx/manifest/uap/windows10/10"/>

  <xs:element name="ProxyStubDll" type="CT_ProxyStubDll"/>

  <xs:complexType name="CT_ProxyStubDll">
    <xs:attribute name="Path" type="t:ST_FileName" use="required"/>
    <xs:attribute name="ProcessorArchitecture" type="t:ST_ArchitectureNonNeutral" use="required"/>
  </xs:complexType>

  <xs:element name="Extension" substitutionGroup="f:ExtensionChoice">
    <xs:complexType>
      <xs:choice minOccurs="0">
        <xs:element name="ComServer" type="CT_ComServer" maxOccurs="1">
          <!-- Class/@AutoConvertTo, ProgId/@Clsid and TreatAsClass/@TreatAs refers to ExeServer/Class/@Id | SurrogateServer/Class/@Id | TreatAsClass/@Id-->
          <xs:key name="Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com:ExeServer/com:Class | com:SurrogateServer/com:Class | com:TreatAsClass"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="ProgId_ClsidRef" refer="Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com:ProgId"/>
            <xs:field xpath="@Clsid"/>
          </xs:keyref>
          <xs:keyref name="TreatAsRef" refer="Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com:TreatAsClass"/>
            <xs:field xpath="@TreatAs"/>
          </xs:keyref>
          <xs:keyref name="AutoConvertToRef" refer="Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com:ExeServer/com:Class | com:SurrogateServer/com:Class | com:TreatAsClass"/>
            <xs:field xpath="@AutoConvertTo"/>
          </xs:keyref>
          <!-- Class/@ProgId , Class/@VersionIndependentProgId and ProgId/@CurrentVersion refer to ProgId/@Id-->
          <xs:key name="ProgId_IdKey">
            <xs:selector xpath="com:ProgId"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="Class_ProgIdRef" refer="ProgId_IdKey">
            <xs:selector xpath="com:ExeServer/com:Class | com:SurrogateServer/com:Class"/>
            <xs:field xpath="@ProgId"/>
          </xs:keyref>
          <xs:keyref name="Class_VerIndProgIdRef" refer="ProgId_IdKey">
            <xs:selector xpath="com:ExeServer/com:Class | com:SurrogateServer/com:Class"/>
            <xs:field xpath="@VersionIndependentProgId"/>
          </xs:keyref>
          <xs:keyref name="ProgId_CurrentVersionRef" refer="ProgId_IdKey">
            <xs:selector xpath="com:ProgId"/>
            <xs:field xpath="@CurrentVersion"/>
          </xs:keyref>
          <!--Com3: Class/@AutoConvertTo, ProgId/@Clsid and TreatAsClass/@TreatAs refers to ExeServer/Class/@Id | SurrogateServer/Class/@Id | TreatAsClass/@Id | com3:ServiceServer/com3:Class/@id-->
          <xs:key name="Com3_Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com3:ExeServer/com:Class | com3:SurrogateServer/com:Class | com3:TreatAsClass | com3:ServiceServer/com3:Class"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="Com3_ProgId_ClsidRef" refer="Com3_Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com3:ProgId"/>
            <xs:field xpath="@Clsid"/>
          </xs:keyref>
          <xs:keyref name="Com3_TreatAsRef" refer="Com3_Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com3:TreatAsClass"/>
            <xs:field xpath="@TreatAs"/>
          </xs:keyref>
          <xs:keyref name="Com3_AutoConvertToRef" refer="Com3_Class_Or_TreatAsClass_IdKey">
            <xs:selector xpath="com3:ExeServer/com:Class | com3:SurrogateServer/com:Class | com3:TreatAsClass | com3:ServiceServer/com3:Class"/>
            <xs:field xpath="@AutoConvertTo"/>
          </xs:keyref>
          <!-- Com3: Class/@ProgId , Class/@VersionIndependentProgId and ProgId/@CurrentVersion refer to ProgId/@Id-->
          <xs:key name="Com3_ProgId_IdKey">
            <xs:selector xpath="com3:ProgId"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="Com3_Class_ProgIdRef" refer="Com3_ProgId_IdKey">
            <xs:selector xpath="com3:ExeServer/com:Class | com3:SurrogateServer/com:Class | com3:ServiceServer/com3:Class"/>
            <xs:field xpath="@ProgId"/>
          </xs:keyref>
          <xs:keyref name="Com3_Class_VerIndProgIdRef" refer="Com3_ProgId_IdKey">
            <xs:selector xpath="com3:ExeServer/com:Class | com3:SurrogateServer/com:Class | com3:ServiceServer/com3:Class"/>
            <xs:field xpath="@VersionIndependentProgId"/>
          </xs:keyref>
          <xs:keyref name="Com3_ProgId_CurrentVersionRef" refer="Com3_ProgId_IdKey">
            <xs:selector xpath="com3:ProgId"/>
            <xs:field xpath="@CurrentVersion"/>
          </xs:keyref>
        </xs:element>
        <xs:element name="ComInterface" type="CT_ComInterface" maxOccurs="1">
          <xs:key name="Interface_IdKey">
            <xs:selector xpath="com:Interface"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="SynchronousRef" refer="Interface_IdKey">
            <xs:selector xpath="com:Interface"/>
            <xs:field xpath="@SynchronousInterface"/>
          </xs:keyref>
          <xs:keyref name="AsynchronousRef" refer="Interface_IdKey">
            <xs:selector xpath="com:Interface"/>
            <xs:field xpath="@AsynchronousInterface"/>
          </xs:keyref>
          <!--Interface\@ProxyStubClsid refers to ProxyStub/@Id-->
          <xs:key name="ProxyStub_IdKey">
            <xs:selector xpath="com:ProxyStub"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="Interface_ProxyStubClsidRef" refer="ProxyStub_IdKey">
            <xs:selector xpath="com:Interface"/>
            <xs:field xpath="@ProxyStubClsid"/>
          </xs:keyref>
          <!--Interface/TypeLib/@Id refers to TypeLib/@Id-->
          <xs:key name="TypeLib_IdKey">
            <xs:selector xpath="com:TypeLib"/>
            <xs:field xpath="@Id"/>
          </xs:key>
          <xs:keyref name="TypeLib_IdRef" refer="TypeLib_IdKey">
            <xs:selector xpath="com:Interface/com:TypeLib"/>
            <xs:field xpath="@Id"/>
          </xs:keyref>
        </xs:element>
      </xs:choice>
      <xs:attribute name="Category" type="t:ST_ExtensionCategory_Com" use="required"/>
      <xs:attributeGroup ref="t:ExtensionBaseAttributes"/>
      <xs:attributeGroup ref="uap10:TrustLevelGroup"/>
    </xs:complexType>
  </xs:element>

  <xs:complexType name="CT_ComServer">
    <xs:choice minOccurs="0" maxOccurs="4000">
      <xs:element ref="com:ExeServer"/>
      <xs:element ref="com:SurrogateServer"/>
      <xs:element ref="com:TreatAsClass"/>
      <xs:element ref="com:ProgId"/>
      <xs:element ref="com3:ServiceServer" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="com3:ExeServer" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="com3:SurrogateServer" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="com3:TreatAsClass" minOccurs="0" maxOccurs="10000"/>
      <xs:element ref="com3:ProgId" minOccurs="0" maxOccurs="10000"/>
    </xs:choice>
  </xs:complexType>

  <xs:complexType name="CT_ComInterface">
    <xs:choice minOccurs="0" maxOccurs="10000">
      <xs:element ref="com:ProxyStub"/>
      <xs:element ref="com:Interface"/>
      <xs:element ref="com:TypeLib"/>
    </xs:choice>
  </xs:complexType>
  
</xs:schema>