Display version info for installed SharePoint product and language packs

PowerShell script which retrieves the version information for the patch baseline from the registry and allows to identify components.

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Param(
  # decide on whether all the sub-components belonging to the product should be shown as well
  [switch]$ShowComponents
)
# location in registry to get info about installed software
$RegLoc = Get-ChildItem HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall
# Get SharePoint Products and language packs
write-host "Products and Language Packs"
write-host "-------------------------------------------"
$Programs = $RegLoc | 
where-object { $_.PsPath -like "*\Office*" } | 
foreach {Get-ItemProperty $_.PsPath} 
$Components = $RegLoc | 
where-object { $_.PsPath -like "*1000-0000000FF1CE}" } | 
foreach {Get-ItemProperty $_.PsPath} 
# output either just the info about Products and Language Packs
# or also for sub components
if ($ShowComponents.IsPresent)
{
$Programs | foreach { 
$_ | fl  DisplayName, DisplayVersion; 
$productCodes = $_.ProductCodes;
$Comp = @() + ($Components | 
where-object { $_.PSChildName -in $productCodes } | 
foreach {Get-ItemProperty $_.PsPath});
$Comp | Sort-Object DisplayName | ft DisplayName, DisplayVersion -Autosize
}
}
else
{
$Programs | fl DisplayName, DisplayVersion

}

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Output is something like this: