Windows Client application on USB stick with write protection

Question

I need one or more approaches to realize the following scenarion:

Let's say we have a windows application (a journal) where journal entries are serialized as XML.

The application is on a usb stick and also the XML file.

The main problem is: no one should be able to write/delete the usb stick except the application itself.

I've read about usb sticks with mechanical or software write lock. But this would also disallow the application to write?!

I'm happy about any approaches.

p.s. It would be a .NET 3.5 WPF Application. But I think that doesn't matter the problem.

Thank you in advance

Answer 1

An idea would be two use 2 partitions. One readonly partition (there should be tools out there that can create cdfs partitions) with your application on it and another secured with a password only known by your App. Possibly Truecrypt or some other partition encryption tools have the needed feature.