# auto-decline.ps1
# Updates auto-declining script : refusing 64 bits, wmp except v11, ie except ie7, some drivers
# Tested with WSUS 3.0 SP1
# 22 dec 08

[System.Reflection.Assembly]::LoadWithPartialName('microsoft.updateservices.administration') | out-null

$wsusrv=[Microsoft.UpdateServices.Administration.AdminProxy]::GetUpdateServer()

$unneededUpdates = 0

$wsusrv.GetUpdates() |
where { ($_.Isdeclined -eq $False) -and ( `
					($_.Title.ToLower() -match 'ia64') `
					-or ($_.Title.ToLower() -match 'itanium') `
					-or ($_.Title.ToLower() -match 'x64') `
					-or ($_.Title.ToLower() -match 'internet explorer 6') `
					-or ($_.Title.ToLower() -match 'internet explorer 8') `
					-or ($_.Title.ToLower() -match 'visio') `
					-or ($_.Title.ToLower() -match 'onenote') `
					-or ($_.Title.ToLower() -match 'infopath') `
					-or ($_.Title.ToLower() -match 'project 2003') `
					-or ($_.Title.ToLower() -match 'publisher 2003') `
					-or ($_.Title.ToLower() -match 'nvidia') `
					-or ($_.Title.ToLower() -match 'ati') `
					-or ($_.Title.ToLower() -match 'windows media player 6.4') `
					-or ($_.Title.ToLower() -match 'windows media player 8') `
					-or ($_.Title.ToLower() -match 'windows media player 9') `
					-or ($_.Title.ToLower() -match 'windows media player 10') `
					-or ($_.IsSuperseded -eq "true") `
					)} |
 % {
	$_ | ft -prop Title,ArrivalDate; $_.Decline() ; $unneededUpdates += 1
}

if ($unneededUpdates -gt 0)
{
	"{0:N0} Unneeded Updates declined." -f $unneededUpdates
} else
{
	Write-warning 'No update to decline'
}

auto decline dans wsus

C#