aaronpmiller · March 19, 2015 14:55 · Mar 19, 2015
diff --git a/Update-WUMU_ExcludeKBVariables.ps1 b/Update-WUMU_ExcludeKBVariables.ps1
@@ -0,0 +1,61 @@
+<#
+    .SYNOPSIS
+    This script will create a series of SMS TSEnvironment variables with the prefix WUMU_ExcludeKB to tell ZTIWindowsUpdate to skip these updates.
+
+    .DESCRIPTION
+    This is an adaptation of a script provided by "The Deployment Guys" to exclude updates that cause multiple restarts as document in Microsoft KB2894518.
+
+    What's (primarily) different in this script:
+    
+    1) Added logic to fallback to a list of known updates that cause this issue if we can't connect to the Microsoft KB.
+    2) Added the ability to define a list of additional KBs to skip.
+    3) Changed the Invoke-WebRequest to UseBasicParsing and the respective result parsing to workaround IE possibly not being ready to process requests (first run customizations).
+
+    .LINK
+    http://support.microsoft.com/kb/2894518
+
+    .LINK
+    http://blogs.technet.com/b/deploymentguys/archive/2015/03/11/excluding-known-multi-reboot-updates-during-a-zti-deployment.aspx
+#>
+
+
+PARAM (
+    [string[]]$KnownMultipleRestartKBs=@('3036493','3039976','2984976','2981685','2966034','2965788','2920189','2871777','2871690','2862330','2771431','2821895','2545698','2529073'),
+    [string[]]$AdditionalKBs
+)
+
+$tsEnv = New-Object -ComObject Microsoft.SMS.TSEnvironment
+$OldProgressPreference = $ProgressPreference
+$ProgressPreference="SilentlyContinue"
+$url = 'http://support.microsoft.com/kb/2894518'
+
+$webRequestSucceeded = $true
+try {
+    Write-Host "Attempting to connect to '$url' to pull the latest list of KBs that require multiple restarts."
+    $result = Invoke-WebRequest -Uri $url -UseBasicParsing
+} catch {
+    $webRequestSucceeded = $false
+}
+
+[string[]]$allKBs = @()
+$allKBs += $AdditionalKBs
+if (($webRequestSucceeded -eq $true) -and ($result.Links.Count -gt 0) -and ($result.StatusCode -eq 200)) {
+    Write-Host "The connection to '$url' succeeded, parsing the results for the current KBs..."
+    $result.Links | Where-Object {($_.href -like "[h/]*kb/[0-9]*[0-9]") -and ($_.href -notlike "*/2894518")} | ForEach-Object {
+        $allKBs += $_.href.split('/')[-1]
+    } 
+} else {
+    Write-Host "The connection to '$url' failed, using a static list of known KBs"
+    $allKBs += $KnownMultipleRestartKBs
+}
+
+$allKBs = $allKBs | Sort-Object -Unique | Where-Object {$_}
+
+Write-Host "The following variables will be created and the respective KBs will be skipped by ZTIWindowsUpdate..."
+$allKBs | ForEach-Object -Begin {$i=1} -Process {
+    $tsEnv.Value("WUMU_ExcludeKB$i") = $_
+    Write-Host "WUMU_ExcludeKB$i=$_"
+    $i++
+}
+
+$ProgressPreference=$OldProgressPreference