MSBuild download task

download.targets

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <UsingTask TaskName="DownloadFile" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll">
    <ParameterGroup>
      <Url ParameterType="System.String" Required="true" />
      <File ParameterType="System.String" Required="false" />
      <OutputFolder ParameterType="System.String" Required="false" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.Web"/>
      <Code Type="Fragment" Language="cs"><![CDATA[
        using (var client = new System.Net.WebClient())
            { client.DownloadFile(Url, (OutputFolder != null ? OutputFolder + "/" : "") + (File ?? System.IO.Path.GetFileName(new Uri(Url).LocalPath))); }
        ]]></Code>
    </Task>
  </UsingTask>
</Project>