SettingParametersViaMSBuild.xml

<?xml version="1.0" encoding="utf-8" ?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <OnAfterPipelineCollectFilesPhase>
      $(OnAfterPipelineCollectFilesPhase);
      MSDeploySetParametersFile;
      MSDeploySetParameters;
      MSDeploySetParametersUpdate;
    </OnAfterPipelineCollectFilesPhase>
  </PropertyGroup>

  <PropertyGroup>
    <!--<MSDeployPublishSetParametersFile>SetParameters.Test.xml</MSDeployPublishSetParametersFile>-->
    <!--<MSDeployPublishSetParameters>testSetting='changed_fromSetParam';IIS Web Application Name='Default Web Site/app13'</MSDeployPublishSetParameters>-->
    <MSDeployPublishSetParametersPriority>-51</MSDeployPublishSetParametersPriority>
  </PropertyGroup>
  
  <!-- Sample Usage: msdeploy.exe ... /p:MSDeployPublishSetParameters=testSetting='changed_fromSetParam';IIS Web Application Name='Default Web Site/app13' -->
  <!--    Seperate parameters with a semicolon (;)-->
  <!--    Seperate name and value with an equal sign (=)-->
  <!--    Surround values with an apostophe (')-->
  <Target Name="MSDeploySetParameters" Condition="'$(MSDeployPublishSetParameters)'!=''" BeforeTargets="MSDeployPublish">
    <ItemGroup>
      <SetParameterArguments Include="$(MSDeployPublishSetParameters)" />
      <SetParameters Include="$([System.Text.RegularExpressions.Regex]::Match(%(SetParameterArguments.Identity), `[^=]*(?==)`))">
        <value>$([System.Text.RegularExpressions.Regex]::Match(%(SetParameterArguments.Identity), `(?&lt;==')[^']*`))</value>
      </SetParameters>      
    </ItemGroup>
  </Target>

  <!-- Sample Usage: msdeploy.exe ... /p:MSDeployPublishSetParametersFile=SetParameters.Test.xml -->
  <Target Name="MSDeploySetParametersFile" Condition="'$(MSDeployPublishSetParametersFile)'!=''" BeforeTargets="MSDeployPublish">
    <XmlPeek
      XmlInputPath="$(MSDeployPublishSetParametersFile)"
      Query="/child::node()/child::node()">
      <Output TaskParameter="Result" ItemName="SetParameterNodes" />
    </XmlPeek>
    <ItemGroup>
      <SetParameters Include="$([System.Text.RegularExpressions.Regex]::Match(%(SetParameterNodes.Identity), `(?&lt;=name=&quot;)[^&quot;]*`))">
        <value>$([System.Text.RegularExpressions.Regex]::Match(%(SetParameterNodes.Identity), `(?&lt;=value=&quot;)[^&quot;]*`))</value>
      </SetParameters>
    </ItemGroup>
  </Target>
  
  <Target Name="MSDeploySetParametersUpdate" >
    <Message Text="%(SetParameters.Identity),%(SetParameters.value)" />
    <ItemGroup>
      <MsDeployDeclareParameters Include="%(SetParameters.Identity)">
        <DefaultValue>%(SetParameters.value)</DefaultValue>
        <Priority>$(MSDeployPublishSetParametersPriority)</Priority>
      </MsDeployDeclareParameters>
    </ItemGroup>
  </Target>


</Project>