Install/Remove dll to/from Gac - Powershell
#Remove toGac
Set-location "c:\Folder Path"
[System.Reflection.Assembly]::Load("System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")
$publish = New-Object System.EnterpriseServices.Internal.Publish
$publish.GacRemove("c:\Folder Path\DLL.dll")
iisreset
#Install toGac
Set-location "c:\Folder Path"
[System.Reflection.Assembly]::Load("System.EnterpriseServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")
$publish = New-Object System.EnterpriseServices.Internal.Publish
$publish.GacInstall("c:\Folder Path\DLL.dll")
iisreset