Code access permissions step by step walkthrough?????

From: Gopal Krish (geeksgk_at_yahoo.com)
Date: 10/28/04 

Date: 27 Oct 2004 21:30:42 -0700

Hi,

I'm a newbie to code access permissions in .net. I tried reading code
access document in MSDN and they don't have fully working code samples
or step by step walkthroughs that will help me understand how to
implement code access permission/security in my web application.

May be I'm expecting too much from MSDN??? I spent almost 2 days in
reading thru MSDN topics on this and have a theoritical understanding
on permissions, declarative and imperative syntax, Demand, security
policy etc etc. But I need some fully working code examples to
understand them better.

Can someone point me to any other web sites where there is a step by
step walkthroughs to understand code access permissions?

Thanks
Gopal