Finding the Installation location of a silverlight OOB App

Question

Is there any way to find where an OOB app is installed at runtime? I realise that once an OOB app is installed it is placed in a folder in "OutOfBrowser" within AppData. However, the folder is named with a long number (probably time stamp related) which I wont know as it changes on each installation. As I would like to launch the OOB app from an existing Windows App, I was going to store the location of the OOB app when I first launch it, then read that path from my existing Windows App to launch it. Is there a way of finding the location of the OOB at runtime?

Answer 1

I dont expect you can find it from inside the Silverlight Application. The location it uses based on an AppId which is generated at runtime. The AppId is just some random number with the domainname.

There is a method called Deployment.GetAppIdForUri, but this has the SecurityCriticalAttribute to prevent access.

Answer 2

It looks like silverlight apps are noted in this Index folder: C:\Documents and Settings\Rod\Local Settings\Application Data\Microsoft\Silverlight\OutOfBrowser\index

If you new the Origin of the app you wanted you could load up the file there and iterate through it to get the paths... a bit hacky but don't know another way.

Here's the thread I posted on SLLauncher and some other findings.