stevo_ wrote:
What are .application files? xbap? as they deploy in a pretty sleak fashion.
I think those (edit: the .application files) are the ClickOnce applications, where you can install them with... er.... two clicks, but that's including clicking the link. It doesn't even need to bring up UAC or anything. The experience is much like opening a word document, except the thing that you're opening is a full program.
Denounce is a great example of a ClickOnce program, especially because it's so perty.

I haven't messed around with ClickOnce much yet, but there
is an option in Visual Studio under the "security" tab in the application's properties.