Install/Uninstall library/assembly (DLL) in to GAC using PowerShell

On Friday, I screwed a little bit, as the build relied on some assemblies being in the GAC and I had not added them to the GAC.

 

I normally use Gacutil but this being a test server, it had no such tools, but no matter, PowerShell to the rescue.

Add-Type -AssemblyName System.EnterpriseServices
$Publisher = New-Object System.EnterpriseServices.Internal.Publish
$Publisher.GacInstall("C:\Users\Account\Desktop\mydll.dll)
gwmi win32_service | ? {$_.Name -match "MSCRM|W3SVC"} | %{Restart-Service -Name $_.Name}

The last step restarts all services containing MSCRM on its name as well as the World Wide Publishing Service, so that both async and sync plugins can make use of this library.

Removing the Assembly from the Gac can be achieved with the following commands:

Add-Type -AssemblyName System.EnterpriseServices
$Publisher = New-Object System.EnterpriseServices.Internal.Publish
$Publisher.GacRemove("C:\Users\Account\Desktop\mydll.dll)
gwmi win32_service | ? {$_.Name -match "MSCRM|W3SVC"} | %{Restart-Service -Name $_.Name}

Add-Type is a PowerShell 3.0 onwards cmdlet, you can use this instead:

[System.Reflection.Assembly]::LoadWithPartialName("System.EnterpriseServices")