While on the tour in India, Steven and I discussed an internal application that was deployed to over 1000 people via Click Once. Click Once is a new feature that is coming in VS2005 which allows you to deploy Windows Forms applications with the ease of a web application.
The Easy Pricing and Estimation Tool (EZ-Pet 2.0) is used by our volume-licensing executives and specialists to gather pricing data and automate the creation of volume licenses for enterprise agreements. Click Once allowed the application to be placed on a server and automatically moved to the user's machine when run. The cool thing is that if there's an update, running the application will automatically cause the update to come down. The user is always up to date.
Anyway, the case study on this is now available. Check it out!