FileVersion info set via MSBuild target

Delphi.VersionInfo.targets

<Project xmlns='http://schemas.microsoft.com/developer/msbuild/2003' ToolsVersion="12.0">
    <PropertyGroup Condition="($(VersionCode)!='' or $(VersionName)!='' or $(FileVersion)!='')">
        <_PreResourceBuildTargets>_SetFileVersion</_PreResourceBuildTargets>
        <CoreBuildDependsOn>$(_PreResourceBuildTargets);$(CoreBuildDependsOn)</CoreBuildDependsOn>
    </PropertyGroup>
  <UsingTask TaskName="__SetFileVersion" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v12.0.dll">
    <ParameterGroup>
      <VerInfoKeys ParameterType="System.String" Required="true" />
      <VersionCode ParameterType="System.String" Required="false" />
      <VersionName ParameterType="System.String" Required="false" />
      <FileVersion ParameterType="System.String" Required="false" />
      <Out ParameterType="System.String" Output="true" />
    </ParameterGroup>
    <Task>
      <Code Type="Fragment" Language="cs"><![CDATA[
        // split values as CSV (by ";")
        String[] verInfoKeysList = VerInfoKeys.Split(';');
        Dictionary<String, String> d = new Dictionary<String, String>();
        foreach (String verInfoValue in verInfoKeysList) {
            // split values as "key=value"
            if (! String.IsNullOrEmpty(verInfoValue)) {
                String[] kv = verInfoValue.Split('=');
                d.Add(kv[0], kv[1]);
            }
        }
        if (! String.IsNullOrEmpty(VersionCode)) {
            d.Remove("versionCode");
            d.Add("versionCode", VersionCode);
        }
        if (! String.IsNullOrEmpty(VersionName)) {
            d.Remove("versionName");
            d.Add("versionName", VersionName);
        }
        if (! String.IsNullOrEmpty(FileVersion)) {
            d.Remove("FileVersion");
            d.Add("FileVersion", FileVersion);
        }

        List<String> L = new List<String>();
        foreach (KeyValuePair<String, String> kv in d) {
            L.Add(kv.Key + "=" + kv.Value);
        }
        _Out = String.Join(";", L.ToArray());
]]></Code>
    </Task>
  </UsingTask>

  <Target Name='_SetVersionCode_Name' >
    <Message Text="$(VerInfo_Keys)" />
    <__SetFileVersion VerInfoKeys="$(VerInfo_Keys)" VersionCode="$(VersionCode)" VersionName="$(VersionName)" FileVersion="$(FileVersion)">
      <Output PropertyName="VerInfo_Keys" TaskParameter="Out" />
    </__SetFileVersion>
    <Message Text="$(VerInfo_Keys)" />
  </Target>
  <Target Name='_SetFileVersion'>
     <CallTarget
        Targets='_SetVersionCode_Name'
     />
  </Target>
</Project>

Just a suggestion, but for supporting differing versions of MSBuild

    <!-- Alow for multiple tool versions, as the CodeTaskFactory is in a version specific DLL -->
    <PropertyGroup>
        <TasksAssemblyName Condition="'$(MSBuildToolsVersion)'=='14.0'">Microsoft.Build.Tasks.Core</TasksAssemblyName>
        <TasksAssemblyName Condition="'$(TasksAssemblyName)'==''">Microsoft.Build.Tasks.v$(MSBuildToolsVersion)</TasksAssemblyName>
    </PropertyGroup>
    <!-- Inline task for replacing values in Delphi's evil VerInfo_Keys which is used but the BuildProjectResourceFile target -->
    <UsingTask TaskName="__SetFileVersion" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\$(TasksAssemblyName).dll">

Has a file for GroupProj?