Can a ClickOnce deployed app be silently mass installed?

I have a smart client app (WinForms/WPF) currently deployed using ClickOnce.

A particular client has expressed the desire to silently deploy the app to it's intranet network users as part of its nightly/weekly client PC update service - presumably via MS Systems Management Server (SMS) and Group Policy or similar (I don't understand the exact mechanisms). As such, they've requested a .MSI installer instead.

So a few questions for confirmation (along with my thoughts on answer - am more than happy to be wrong!):

• Can a ClickOnce app be silently installed en-mass by admin???
  • My thoughts: No, because ClickOnce is a per-user installation this would be difficult unless the user is actually logged in at time of remote installation.
• Is there a tool to convert a ClickOnce app/project's settings to a simple MSI installer project (e.g. Visual Studio Deployment Project)???
  • My thoughts: Not in the box, but would love a tool to repeatedly copy/use settings from the ClickOnce config to the deployment project - e.g. ProductName, Version, File Associations etc. This way we only maintain one set of deployment settings.

Any other alternatives for this scenario to get 'er done quick...?

I don't think you can install a ClickOnce application silently, certainly not with SMS. And I don't know of any tool that does that, but it doesn't mean it doesn't exist. ;-)

The idea of deploying a shortcut is an interesting thought. Have you ever noticed that if you leave a shortcut on the desktop even after the application is uninstalled, if the user clicks on it, it reinstalls the application?