Silverlight: how to uninstall out-of-browser application

I'm trying to uninstall out-of-browser app. I'd read a manual, and found the following command:

   1: "%ProgramFiles%\Micr开发者_开发技巧osoft Silverlight\sllauncher.exe" 

   2:     /uninstall 

   3:     /origin:http://www.silverlight.net/content/samples/apps/facebookclient/ClientBin/Silverface.xap

what is /origin?

Switch /origin is the original URL that you downloaded/installed/run that Silverlight xap file from.

In your given example it is:

http://www.silverlight.net/content/samples/apps/facebookclient/ClientBin/Silverface.xap

That is the place it will look for updates if available.