param(
  [Parameter(Mandatory = $true)]
  [string]$Path
)

$ErrorActionPreference = 'Stop'
$item = Get-Item -LiteralPath $Path

if (-not $item.PSIsContainer -and $item.Extension -ieq '.exe') {
  [pscustomobject]@{
    productVersion = [string]$item.VersionInfo.ProductVersion
    fileVersion = [string]$item.VersionInfo.FileVersion
    productName = [string]$item.VersionInfo.ProductName
    fileDescription = [string]$item.VersionInfo.FileDescription
  } | ConvertTo-Json -Compress
  exit 0
}

throw "Not an executable file: $Path"