GetZoom.ps1

########
## Edit the variables below as necessary
$url = "http://zoom.us/client/latest/ZoomInstallerFull.msi"
$output = "C:\Temp\Zoom.msi"
########

try {
  ## Kill the process if running
  "Trying to quit the application if running"
  Stop-Process -Name Zoom* -Force
}
catch {
  "The application was not running. Proceeding with installation"
}

"Checking if temp dir exists, creating if not"
$path = "C:\Temp"
if(!(Test-Path -Path $path)){
    "Creating temp directory"
    New-Item -ItemType directory -Path $path
}

try {
  ## Download the file and output it to the defined location
  "Downloading application"
  Invoke-WebRequest -Uri $url -OutFile $output
  ## Install the newly downloaded file
  "Installing application"
  Invoke-Command -ScriptBlock { & cmd /c "msiexec.exe /i $output" /qn }
  ## Remove the cached installer
  "Removing cached installer"
  Remove-Item $output
}
catch {
  "Unable to successfully download and install the application. Exiting"
  exit 1
}

"The application was successfully installed"
exit 0