<?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"
           xmlns="http://schemas.microsoft.com/appx/manifest/com/windows10"
           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:com2="http://schemas.microsoft.com/appx/manifest/com/windows10/2"
           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/windows10/2"/>
  <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="Extensions" substitutionGroup="f:ComExtensions" type="CT_ComPackageExtensions"/>

  <xs:complexType name="CT_ComPackageExtensions">
    <xs:choice minOccurs ="0" maxOccurs="10000">
      <xs:element name="Extension">
        <xs:complexType>
          <xs:choice>
            <xs:element name="ComInterface" maxOccurs="1" type="CT_ComInterface"/>
          </xs:choice>
          <xs:attribute name="Category" type="t:ST_PackageExtensionCategory_Com" use="required"/>
        </xs:complexType>
      </xs:element>
    </xs:choice>
  </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 | com3:ServiceServer/com3:Class"/>
            <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 | com3:ServiceServer/com3:Class"/>
            <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 | com3:ServiceServer/com3: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 | com3:ServiceServer/com3: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:sequence>
      <xs:element ref="ExeServer" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="SurrogateServer" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="TreatAsClass" minOccurs="0" maxOccurs="10000"/>
      <xs:element ref="ProgId" minOccurs="0" maxOccurs="10000"/>
      <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:sequence>
  </xs:complexType>
  
  <xs:element name="ExeServer" type="CT_ExeServer" />
  <xs:element name="SurrogateServer" type="CT_SurrogateServer" />
  <xs:element name="TreatAsClass" type="CT_TreatAsClass" />
  <xs:element name="ProgId" type="CT_ProgId" />

  <xs:complexType name="CT_ComInterface">
    <xs:sequence>
      <xs:element ref="ProxyStub" minOccurs="0" maxOccurs="1000"/>
      <xs:element ref="Interface" minOccurs="0" maxOccurs="10000"/>
      <xs:element ref="TypeLib" minOccurs="0" maxOccurs="1000"/>
    </xs:sequence>
  </xs:complexType>

  <xs:element name="ProxyStub" type="CT_ProxyStub">
    <xs:unique name="ProxyStubDll_ProcessorArchitecture">
      <xs:selector xpath="com2:ProxyStubDll"/>
      <xs:field xpath="@ProcessorArchitecture"/>
    </xs:unique>
    <xs:unique name="ProxyStubDll_Path">
      <xs:selector xpath="com2:ProxyStubDll"/>
      <xs:field xpath="@Path"/>
    </xs:unique>
  </xs:element>
  <xs:element name="Interface" type="CT_Interface"/>
  <xs:element name="TypeLib" type="CT_TypeLib">
    <xs:unique name="Version_VersionNumber">
      <xs:selector xpath="com:Version"/>
      <xs:field xpath="@VersionNumber"/>
    </xs:unique>
  </xs:element>

  <xs:complexType name="CT_ExeServer">
    <xs:sequence>
      <xs:element name="Class" type="CT_ExeServerClass" minOccurs="1" maxOccurs="10000"/>
    </xs:sequence>
    <xs:attribute name="Executable" type="t:ST_ExecutableAnyCase" use="required"/>
    <xs:attribute name="Arguments" type="t:ST_NonEmptyString"/>
    <xs:attribute name="DisplayName" type="t:ST_DisplayName"/>
    <xs:attribute name="LaunchAndActivationPermission" type="ST_Permissions" />
  </xs:complexType>

  <xs:complexType name="CT_Class">
    <xs:attribute name="Id" type="t:ST_GUID" use="required"/>
    <xs:attribute name="DisplayName" type="t:ST_DisplayName"/>
  </xs:complexType>

  <xs:complexType name="CT_OutOfProcClass">
    <xs:complexContent>
      <xs:extension base="CT_Class">
        <xs:all>
          <xs:element name="ImplementedCategories" type="CT_ImplementedCategories" minOccurs="0">
            <xs:unique name="ImplementedCategory_Id">
              <xs:selector xpath="com:ImplementedCategory"/>
              <xs:field xpath="@Id"/>
            </xs:unique>
          </xs:element>
          <xs:element name="Conversion" type="CT_Conversion" minOccurs="0"/>
          <xs:element name="DataFormats" type="CT_DataFormats" minOccurs="0">
            <xs:unique name="DataFormats_All">
              <xs:selector xpath="com:DataFormat"/>
              <xs:field xpath="@FormatName"/>
              <xs:field xpath="@StandardFormat"/>
              <xs:field xpath="@AspectFlag"/>
              <xs:field xpath="@MediumFlag"/>
              <xs:field xpath="@Direction"/>
            </xs:unique>
          </xs:element>
          <xs:element name="MiscStatus" type="CT_MiscStatus" minOccurs="0">
            <xs:unique name="Aspect_Type">
              <xs:selector xpath="com:Aspect"/>
              <xs:field xpath="@Type"/>
            </xs:unique>
          </xs:element>
          <xs:element name="Verbs" type="CT_Verbs" minOccurs="0">
            <xs:unique name="Verb_Index">
              <xs:selector xpath="com:Verb"/>
              <xs:field xpath="@Id"/>
            </xs:unique>
          </xs:element>
          <xs:element name="DefaultIcon" type="CT_DefaultIcon" minOccurs="0"/>
          <xs:element name="ToolboxBitmap32" type="CT_ToolboxBitmap" minOccurs="0"/>
        </xs:all>
        <xs:attribute name="EnableOleDefaultHandler" type="xs:boolean"/>
        <xs:attribute name="ProgId" type="t:ST_ProgId"/>
        <xs:attribute name="VersionIndependentProgId" type="t:ST_ProgId"/>
        <xs:attribute name="AutoConvertTo" type="t:ST_GUID"/>
        <xs:attribute name="InsertableObject" type="xs:boolean"/>
        <xs:attribute name="ShortDisplayName" type="t:ST_ShortDisplayName"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="CT_ExeServerClass">
    <xs:complexContent>
      <xs:extension base="CT_OutOfProcClass"/>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="CT_ImplementedCategories">
    <xs:sequence>
      <xs:element name="ImplementedCategory" type="CT_ImplementedCategory" minOccurs="1" maxOccurs="1000"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="CT_ImplementedCategory">
    <xs:attribute name="Id" type="t:ST_GUID" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_Conversion">
    <xs:all minOccurs="0">
      <xs:element name="Readable" type="CT_ConversionFormats" minOccurs="0">
        <xs:unique name="Readable_Format_FormatName">
          <xs:selector xpath="com:Format"/>
          <xs:field xpath="@FormatName"/>
        </xs:unique>
        <xs:unique name="Readable_Format_StandardFormat">
          <xs:selector xpath="com:Format"/>
          <xs:field xpath="@StandardFormat"/>
        </xs:unique>
      </xs:element>
      <xs:element name="ReadWritable" type="CT_ConversionFormats" minOccurs="0">
        <xs:unique name="ReadWritable_Format_FormatName">
          <xs:selector xpath="com:Format"/>
          <xs:field xpath="@FormatName"/>
        </xs:unique>
        <xs:unique name="ReadWritable_Format_StandardFormat">
          <xs:selector xpath="com:Format"/>
          <xs:field xpath="@StandardFormat"/>
        </xs:unique>
      </xs:element>
    </xs:all>
  </xs:complexType>

  <xs:complexType name="CT_ConversionFormats">
    <xs:sequence>
      <xs:element name="Format" type="CT_ConversionFormat" minOccurs="1" maxOccurs="1000"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="CT_ConversionFormat">
    <xs:attribute name="FormatName" type="t:ST_NonEmptyString"/>
    <xs:attribute name="StandardFormat" type="ST_Hexadecimal"/>
  </xs:complexType>

  <xs:complexType name="CT_DataFormats">
    <xs:sequence>
      <xs:element name="DataFormat" type="CT_DataFormat" minOccurs="0" maxOccurs="1000"/>
    </xs:sequence>
    <xs:attribute name="DefaultFormatName" type="t:ST_NonEmptyString"/>
    <xs:attribute name="DefaultStandardFormat" type="ST_Hexadecimal"/>
  </xs:complexType>

  <xs:complexType name="CT_DataFormat">
    <xs:attribute name="FormatName" type="t:ST_NonEmptyString"/>
    <xs:attribute name="StandardFormat" type="ST_Hexadecimal"/>
    <xs:attribute name="AspectFlag" type="ST_Aspect" use="required"/>
    <xs:attribute name="MediumFlag" type="ST_Medium" use="required"/>
    <xs:attribute name="Direction" type="ST_DataFormatDirection" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_MiscStatus">
    <xs:sequence>
      <xs:element name="Aspect" type="CT_Aspect" minOccurs="0" maxOccurs="1000"/>
    </xs:sequence>
    <xs:attribute name="OleMiscFlag" type="ST_OleMisc" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_Aspect">
    <xs:attribute name="Type" type="ST_AspectType" use="required"/>
    <xs:attribute name="OleMiscFlag" type="ST_OleMisc" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_Verbs">
    <xs:sequence>
      <xs:element name="Verb" type="CT_ComVerb" minOccurs="1" maxOccurs="1000"/>
    </xs:sequence>
  </xs:complexType>

  <xs:complexType name="CT_ComVerb">
    <xs:attribute name="Id" type="ST_VerbIndex" use="required"/>
    <xs:attribute name="DisplayName" type="t:ST_DisplayName" use="required"/>
    <xs:attribute name="AppendMenuFlag" type="ST_AppendMenu" use="required"/>
    <xs:attribute name="OleVerbFlag" type="ST_OleVerb" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_DefaultIcon">
    <xs:attribute name="Path" type="t:ST_FileName" use="required"/>
    <xs:attribute name="ResourceIndex" type="xs:int"/>
  </xs:complexType>

  <xs:complexType name="CT_ToolboxBitmap">
    <xs:attribute name="Path" type="t:ST_FileName" use="required"/>
    <xs:attribute name="ResourceId" type="xs:positiveInteger"/>
  </xs:complexType>

  <xs:complexType name="CT_SurrogateServer">
    <xs:sequence>
      <xs:element name="Class" type="CT_SurrogateClass" minOccurs="1" maxOccurs="10000"/>
    </xs:sequence>
    <xs:attribute name="CustomSurrogateExecutable" type="t:ST_ExecutableAnyCase"/>
    <xs:attribute name="DisplayName" type="t:ST_DisplayName" />
    <xs:attribute name="LaunchAndActivationPermission" type="ST_Permissions" />
    <xs:attribute name="AppId" type="t:ST_GUID" />
    <xs:attribute name="SystemSurrogate" type="ST_SystemSurrogate" />
  </xs:complexType>

  <xs:complexType name="CT_SurrogateClass">
    <xs:complexContent>
      <xs:extension base="CT_OutOfProcClass">
        <xs:attribute name="Path" type="t:ST_FileName" use="required"/>
        <xs:attribute name="ThreadingModel" type="ST_ThreadingModel" use="required"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="CT_ProxyStub">
    <xs:complexContent>
      <xs:extension base="CT_Class">
        <xs:sequence>
          <xs:element ref="com2:ProxyStubDll" minOccurs="0" maxOccurs="4"/>
        </xs:sequence>
        <xs:attribute name="Path" type="t:ST_FileName" use="optional"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:complexType name="CT_Interface">
    <xs:all>
      <xs:element name="TypeLib" type="CT_TypeLibRef" minOccurs="0"/>
    </xs:all>
    <xs:attribute name="Id" type="t:ST_GUID" use="required"/>
    <xs:attribute name="UseUniversalMarshaler" type="xs:boolean"/>
    <xs:attribute name="ProxyStubClsid" type="t:ST_GUID"/>
    <xs:attribute name="SynchronousInterface" type="t:ST_GUID"/>
    <xs:attribute name="AsynchronousInterface" type="t:ST_GUID"/>
  </xs:complexType>

  <xs:complexType name="CT_TypeLibRef">
    <xs:attribute name="Id" type="t:ST_GUID" use="required"/>
    <xs:attribute name="VersionNumber" type="ST_Version"/>
  </xs:complexType>

  <xs:complexType name="CT_TypeLib">
    <xs:sequence>
      <xs:element name="Version" type="CT_TypeLibVersion" minOccurs="1" maxOccurs="1000"/>
    </xs:sequence>
    <xs:attribute name="Id" type="t:ST_GUID" use="required"/>
  </xs:complexType>

  <xs:complexType name="CT_TypeLibVersion">
    <xs:all minOccurs="0">
      <xs:element name="Win32Path" type="CT_TypeLibPath" minOccurs="0"/>
      <xs:element name="Win64Path" type="CT_TypeLibPath" minOccurs="0"/>
    </xs:all>
    <xs:attribute name="VersionNumber" type="ST_Version" use="required"/>
    <xs:attribute name="LocaleId" type="ST_Hexadecimal" default="0"/>
    <xs:attribute name="LibraryFlag" type="ST_LibFlag"/>
    <xs:attribute name="HelpDirectory" type="t:ST_NonEmptyString"/>
    <xs:attribute name="DisplayName" type="t:ST_DisplayName"/>
  </xs:complexType>

  <xs:complexType name="CT_TypeLibPath">
    <xs:attribute name="Path" type="t:ST_FileName" use="required"/>
    <xs:attribute name="ResourceId" type="xs:positiveInteger" use="optional"/>
  </xs:complexType>

  <xs:complexType name="CT_ProgId">
    <xs:attribute name="Id" type="t:ST_ProgId" use="required"/>
    <xs:attribute name="Clsid" type="t:ST_GUID"/>
    <xs:attribute name="CurrentVersion " type="t:ST_ProgId"/>
  </xs:complexType>

  <xs:complexType name="CT_TreatAsClass">
    <xs:complexContent>
      <xs:extension base="CT_Class">
        <xs:attribute name="TreatAs" type="t:ST_GUID" use="required"/>
        <xs:attribute name="AutoConvertTo" type="t:ST_GUID"/>
      </xs:extension>
    </xs:complexContent>
  </xs:complexType>

  <xs:simpleType name="ST_Version">
    <xs:restriction base="xs:string">
      <xs:pattern value="(0|[1-9a-fA-F][0-9a-fA-F]{0,3})\.(0|[1-9a-fA-F][0-9a-fA-F]{0,3})"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_Permissions">
    <xs:restriction base="xs:string">
      <xs:pattern value="(O:[A-Z0-9\-]*)?(G:[A-Z0-9\-]*)?(D:[PARI]*(\([A-Z0-9\-;]*\))*)?(S:[PARI]*(\([A-Z0-9\-;]*\))*)?"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_Hexadecimal">
    <xs:restriction base="xs:string">
      <xs:pattern value="[0-9a-fA-F]{1,4}"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_ThreadingModel">
    <xs:restriction base="xs:string">
      <xs:enumeration value="Both"/>
      <xs:enumeration value="STA"/>
      <xs:enumeration value="MTA"/>
      <xs:enumeration value="MainSTA"/>
      <xs:enumeration value="Neutral"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_AspectType">
    <xs:restriction base="xs:string">
      <xs:enumeration value="Content"/>
      <xs:enumeration value="Thumbnail"/>
      <xs:enumeration value="Icon"/>
      <xs:enumeration value="DocPrint"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_DataFormatDirection">
    <xs:restriction base="xs:string">
      <xs:enumeration value="Get"/>
      <xs:enumeration value="Set"/>
      <xs:enumeration value="GetAndSet"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_SystemSurrogate">
    <xs:restriction base="xs:string">
      <xs:enumeration value="PreviewHost"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_VerbIndex">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="-6"/>
      <xs:maxInclusive value="1000"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_Aspect">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="-1"/>
      <xs:maxInclusive value="15"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_Medium">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="0"/>
      <xs:maxInclusive value="127"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_OleMisc">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="0"/>
      <xs:maxInclusive value="4194303"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_AppendMenu">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="0"/>
      <xs:maxInclusive value="2431"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_OleVerb">
    <xs:restriction base="xs:int">
      <xs:minInclusive value="0"/>
      <xs:maxInclusive value="3"/>
    </xs:restriction>
  </xs:simpleType>

  <xs:simpleType name="ST_LibFlag">
    <xs:restriction base="xs:string">
      <xs:pattern value="[0-9a-fA-F]"/>
    </xs:restriction>
  </xs:simpleType>

</xs:schema>