Discussing DR issues and dependancy's etc., I was pondering features and solutions and it struck me that if one has LOST the pre-packaged solution during a DR, how could one extract it from Config? Turns out to be dead easy...

# tell powershell to load Sharepoint DLL's
[void] [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.SharePoint")
[void] [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server")
[void] [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server.Search")
[void] [System.Reflection.Assembly]::LoadWithPartialName("Microsoft.Office.Server.Administration.ServerFarm")
#
# connect to the farm
#
$SPfarm = [Microsoft.SharePoint.Administration.SPFarm]::get_Local()
$ver = $SPfarm.BuildVersion
Write-Output "_____________________________________________"
Write-Output "Farm Version: $ver"
Write-Output " "

$SPSolutionCollection = $SPfarm.Solutions
$SolutionCount = $SPSolutionCollection.Count
Write-Output "Solutions in Farm: $SolutionCount"

foreach ($SPsolution in $SPSolutionCollection) {
  $SolutionName = $SPsolution.DisplayName
  $SolutionGUID = $SPsolution.Id
  $SPdeployedServers = $SPsolution.DeployedServers
  $SPdeployedWebApps = $SPSolution.DeployedWebApplications
  Write-Output "$SolutionGUID : $SolutionName"

  if ($SPSolution.Deployed) {
    Write-Output " Deployed to:"
    foreach ($SPserver in $SPdeployedServers) {
       $SrvrName = $SPserver.Name
       Write-Output " $SrvrName"
    }
  }

#
# dump out the .WSP
#
  $file = $SPsolution.SolutionFile 
  $file.SaveAs("c:\Solutions\" + $SolutionName)
}