XBAP - Can I grant full trust only for specific methods?

Question

I'm considering using XBAP for an intranet application and I'd like to avoid setting the entire application to Full Trust.

Essentially, I have a few method calls that I'll need to make that will require Full Trust (e.g. DriveInfo.GetDrives), but I want to run the rest of the app in partial trust because it doesn't need full trust for 99% of the app.

Is there a way to have full trust on specific method calls and/or to break out the pieces that need full trust permission into a different assembly so I can keep the bulk of the app at partial trust?

Thanks!

Answer 1

Short answer: you can, .Net lets you decorate a method for an specific right level. But (and this is a big but), EACH USER have to give you that right no matter you requested the right. Maybe a click-once deployment help you more. In a click-once deployment your application inherits your user's rights.