I find this useful:
function Get-Version($filePath)
{
$name = @{Name="Name";Expression= {split-path -leaf $_.FileName}}
$path = @{Name="Path";Expression= {split-path $_.FileName}}
dir -recurse -path $filePath | % { if ($_.Name -match "(.*dll|.*exe)$") {$_.VersionInfo}} | select FileVersion, $name, $path
}