exec_buildfile.ps1

$msbuild = "C:\Windows\Microsoft.Net\Framework\v4.0.30319\MSBuild.exe"
$MsBuilExists = Test-Path $msbuild
If ($MsBuilExists -ne $true) {write-host "msbuild does not exist at this location. Install Visual Studio 2015 (Community Edition should be adequate)"}
$buildFile = "C:\Users\Richie\Documents\ssis_guy\build_ssis.proj"
& $msbuild $buildFile

ssis_build.xml

<Project ToolsVersion="4.0"
    xmlns="http://schemas.microsoft.com/developer/msbuild/2003"
    DefaultTargets="DevEnvInstaller">
    <Target Name="DevEnvInstaller">
        <PropertyGroup>
            <DevEnv>C:\Program Files (x86)\Microsoft Visual Studio\2017\Professional\Common7\IDE\devenv.com</DevEnv>
            <SolutionFile>C:\Users\Richie\Documents\ssis_guy\ssis_guy.sln</SolutionFile>
            <ProjectFile>C:\Users\Richie\Documents\ssis_guy\ssis_guy\ssis_guy.dtproj</ProjectFile>
            <Configuration>Development</Configuration>
        </PropertyGroup>
        <Exec Command="&quot;$(devenv)&quot; &quot;$(SolutionFile)&quot; /Rebuild &quot;$(Configuration)&quot; /Project &quot;$(ProjectFile)&quot; /ProjectConfig &quot;$(Configuration)&quot; /Log" ContinueOnError="false" IgnoreExitCode="false" WorkingDirectory="$(MSBuildProjectDirectory)" />
    </Target>
</Project>