Use PowerShell to unpin Taskbar shortcut depending on shortcut Target Path

Deleting the shortcut from the "C:\Users\username\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar" leaves the icon on the taskbar but in an unusable state and clicking it pops up an error that it doesn't exist and asks if you want to remove it. I'm guessing that this is what you want to avoid.

There doesn't seem to be a simple way to do this, but there's a Module available in the TechNet Script Center that does the trick:

Pin and unpin applications from the taskbar and Start-menu

###########################################################################"  #   #  # NAME: PinnedApplications.psm1  #   # AUTHOR: Jan Egil Ring, Crayon  #  # DATE  : 06.08.2010   #   # COMMENT: Module with the ability to pin and unpin programs from the taskbar and the Start-menu in Windows 7 and Windows Server 2008 R2.  #  # This module are based on the Add-PinnedApplication script created by Ragnar Harper and Kristian Svantorp:  # http://blogs.technet.com/kristian/archive/2009/04/24/nytt-script-pin-to-taskbar.aspx  # http://blog.crayon.no/blogs/ragnar/archive/2009/04/17/pin-applications-to-windows-7-taskbar.aspx  #  # Johan Akerstrom`s blog: http://cosmoskey.blogspot.com  #  # For more information, see the following blog post:  # http://blog.crayon.no/blogs/janegil/archive/2010/02/26/pin-and-unpin-applications-from-the-taskbar-and-start-menu-using-windows-powershell.aspx  #  # VERSION HISTORY:  # 1.0 17.04.2009 - Initial release by Ragnar Harper and Kristian Svantorp  # 1.1 26.02.2010 - Update by Jan Egil Ring. Added the capability to unpin applications.  # 1.2 06.08.2010 - Update by Johan Akerstrom. Added full MUI support.  #   ###########################################################################" function Set-PinnedApplication { <#  .SYNOPSIS  This function are used to pin and unpin programs from the taskbar and Start-menu in Windows 7 and Windows Server 2008 R2 .DESCRIPTION  The function have to parameteres which are mandatory: Action: PinToTaskbar, PinToStartMenu, UnPinFromTaskbar, UnPinFromStartMenu FilePath: The path to the program to perform the action on .EXAMPLE Set-PinnedApplication -Action PinToTaskbar -FilePath "C:\WINDOWS\system32\notepad.exe" .EXAMPLE Set-PinnedApplication -Action UnPinFromTaskbar -FilePath "C:\WINDOWS\system32\notepad.exe" .EXAMPLE Set-PinnedApplication -Action PinToStartMenu -FilePath "C:\WINDOWS\system32\notepad.exe" .EXAMPLE Set-PinnedApplication -Action UnPinFromStartMenu -FilePath "C:\WINDOWS\system32\notepad.exe" #>         [CmdletBinding()]        param(       [Parameter(Mandatory=$true)][string]$Action,        [Parameter(Mandatory=$true)][string]$FilePath        )        if(-not (test-path $FilePath)) {             throw "FilePath does not exist."       }        function InvokeVerb {            param([string]$FilePath,$verb)         $verb = $verb.Replace("&","")         $path= split-path $FilePath         $shell=new-object -com "Shell.Application"          $folder=$shell.Namespace($path)            $item = $folder.Parsename((split-path $FilePath -leaf))         $itemVerb = $item.Verbs() | ? {$_.Name.Replace("&","") -eq $verb}         if($itemVerb -eq $null){             throw "Verb $verb not found."                     } else {             $itemVerb.DoIt()         }        }     function GetVerb {         param([int]$verbId)         try {             $t = [type]"CosmosKey.Util.MuiHelper"         } catch {             $def = [Text.StringBuilder]""             [void]$def.AppendLine('[DllImport("user32.dll")]')             [void]$def.AppendLine('public static extern int LoadString(IntPtr h,uint id, System.Text.StringBuilder sb,int maxBuffer);')             [void]$def.AppendLine('[DllImport("kernel32.dll")]')             [void]$def.AppendLine('public static extern IntPtr LoadLibrary(string s);')             add-type -MemberDefinition $def.ToString() -name MuiHelper -namespace CosmosKey.Util                     }         if($global:CosmosKey_Utils_MuiHelper_Shell32 -eq $null){                     $global:CosmosKey_Utils_MuiHelper_Shell32 = [CosmosKey.Util.MuiHelper]::LoadLibrary("shell32.dll")         }         $maxVerbLength=255         $verbBuilder = new-object Text.StringBuilder "",$maxVerbLength         [void][CosmosKey.Util.MuiHelper]::LoadString($CosmosKey_Utils_MuiHelper_Shell32,$verbId,$verbBuilder,$maxVerbLength)         return $verbBuilder.ToString()     }     $verbs = @{          "PintoStartMenu"=5381         "UnpinfromStartMenu"=5382         "PintoTaskbar"=5386         "UnpinfromTaskbar"=5387     }     if($verbs.$Action -eq $null){            Throw "Action $action not supported`nSupported actions are:`n`tPintoStartMenu`n`tUnpinfromStartMenu`n`tPintoTaskbar`n`tUnpinfromTaskbar"     }     InvokeVerb -FilePath $FilePath -Verb $(GetVerb -VerbId $verbs.$action) } Export-ModuleMember Set-PinnedApplication