teamcity1

  <!-- the step to copy the config file first avoids a 'File is being used by another process' error -->
  <Target Name="BeforeBuild">
    <Copy SourceFiles="Web.config" DestinationFiles="Web.temp.config" OverwriteReadOnlyFiles="True" />
    <TransformXml Source="Web.temp.config" Transform="Web.$(Configuration).config" Destination="Web.config" />
  </Target>
  <Target Name="AfterBuild">
    <Copy SourceFiles="Web.temp.config" DestinationFiles="Web.config" OverwriteReadOnlyFiles="True" />
    <Delete Files="Web.temp.config" />
  </Target>

- Command
MSBuild.exe PATH_TO_PROJ.csproj /p:DeployOnBuild=true /p:PublishProfile=PUBLISH_TARGET /p:Configuration=Release