Download all SharePoint wsp solutions from SharePoint farm.

ExportWSPSolutions.ps1

# ----------------------------------------------
# Author: Romain Blanchard
# Date: 10.04.2013
# Description: Download all SharePoint wsp solutions from SharePoint farm.
# ----------------------------------------------

# -- Initialize -- #
Add-PSSnapin Microsoft.SharePoint.PowerShell –erroraction SilentlyContinue

# -- Options -- #
$dirName = "C:\ExportedSolutions"

# -- Script -- #
Write-Host Exporting solutions to $dirName 
foreach ($solution in Get-SPSolution) 
{ 
    $id = $Solution.SolutionID 
    $title = $Solution.Name 
    $filename = $Solution.SolutionFile.Name
    Write-Host "Exporting ‘$title’ to …\$filename" -nonewline 
    try { 
        $solution.SolutionFile.SaveAs("$dirName\$filename") 
        Write-Host " – done" -foreground green 
    } 
    catch 
    { 
        Write-Host " – error : $_" -foreground red 
    } 
}