Install-Java7JRE.ps1

function Install-Java7JRE()
{
    # 7.0.79
    $url = "http://javadl.sun.com/webapps/download/AutoDL?BundleId=106369"
    $filename = "jre-7u79-windows-x64.exe"
    $downloadedFile = Join-Path $env:TEMP $filename
    $javaHome = Join-Path $env:ProgramFiles "Java\jre7"
    $jreForPathVariable = Join-Path $javaHome 'bin'


    if ((Test-Path -Path $downloadedFile) -eq $acfalse)
    {
        Invoke-WebRequest -Uri $url -OutFile $downloadedFile
    }

    $process = Start-Process -FilePath $downloadedFile `
        -ArgumentList /s  `
        -NoNewWindow -Wait

    [Environment]::SetEnvironmentVariable('JAVA_HOME', $javaHome, 'Machine')
}