Where-Object filtering using an array

Question

Greetings! Trying to use Where-Object to filter out the returned data from Get-ChildItem. I essentially want to include everything that matches "Microsoft Lync Server". This works fine for matching "Microsoft Lync Server", but I can't
seem to figure out the syntax to exclude those that match anything in the array.
$filter = @("Debugging Tools","Resource Kit Tools","Best Practices Analyzer","Meeting Room Portal")
(Get-ChildItem HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall | ForEach-Object {Get-ItemProperty $_.pspath} | Where-Object {$_.DisplayName -imatch "Microsoft Lync Server"}) | Select-Object DisplayVersion,displayname | Sort-Object DisplayVersion -Descending
I've tried using something like
(Get-ChildItem HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall | ForEach-Object {Get-ItemProperty $_.pspath} | Where-Object {$_.DisplayName -imatch "Microsoft Lync Server" -and $_.DisplayName -notin $filter}) | Select-Object DisplayVersion,displayname | Sort-Object DisplayVersion -Descending
As well as -notcontains -notmatch, etc. to no avail. Ideas?

Answer 1

Not quite. The requirement is to list ALL with a display name that includes "Microsoft Lync Server" EXCEPT those in the filter. Your first example gave JUST the stuff in the filter. Changing it to -inotmatch now shows EVERYTHING (including stuff other than
"Microsoft Lync Server") except what's in the filter. But, I was able to adapt it to:
$filter = @("Debugging Tools","Resource Kit Tools","Best Practices Analyzer","Meeting Room Portal")
[regex]$regex = ‘(‘ + (($filter |foreach {[regex]::escape($_)}) –join “|”) + ‘)’
(Get-ChildItem HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall |
ForEach-Object {Get-ItemProperty $_.pspath} |
Where-Object {$_.DisplayName -imatch "Microsoft Lync Server" -and $_.DisplayName -inotmatch $regex}) |
Select-Object DisplayVersion,displayname |
Sort-Object DisplayVersion -Descending
Thanks for the info, as it kept most of my original syntax, and wasn't full of aliases.