$farm = Get-SpFarm
$file = $farm.Solutions.Item("documenteventreceiver.wsp").SolutionFile
$file.SaveAs("E:\WSPFiles\documenteventreceiver.wsp") Экспорт .wsp решения с помощью PowerShell
$farm = Get-SpFarm
$file = $farm.Solutions.Item("documenteventreceiver.wsp").SolutionFile
$file.SaveAs("E:\WSPFiles\documenteventreceiver.wsp")