Worker Process Isolation Mode (IIS 6.0)

IIS 6.0 worker process isolation mode takes the concept of application isolation, which was introduced in IIS 4.0, one step further. In IIS 6.0, you can isolate one application from another so that an error in one application does not affect another application running in a different process. This application isolation mode provides better isolation while not incurring a performance penalty for isolation.
Worker process isolation mode loads application code — for example, ASP and ASP.NET applications — into the worker process only. By isolating application code in the worker process, this application isolation mode ensures a reliable environment for an application server: the WWW service, IIS Admin service, and HTTP.sys can run continuously despite any service interruptions that occur in a worker process. Also, Web sites running in the worker processes are not affected by failures in other worker processes because they are isolated from each other through operating system process boundaries.
Worker process isolation mode uses all of the new IIS 6.0 core components and supports application pooling, recycling, and health monitoring features.

ASP.net 3.5 Security Settings and Configurations

For about i month i trying to make a an security issue to our existing web based applications ,So i search more and more to related to this title , I would to represent some what i discovered in this field ,because ,that's too much so i make that in stages ,and in brief i will discuss what i made
1-I set the config setting at web.config for Authorizattion and authontications
2- I make a security database which similar to ASPNETDB But with my own name and my private Membership Provider,and Role provider and related changes in Security DB and Web.Config
3-I made a specific Folder for all related pages for Make new roles ,Assign new Users for Role ,Change password,Create user wizard ,Edit pages and toolbar, Menu-bar with the related privilege as forbidden pages or transactions or view items from Menu Bar
4-Login page with related behind Code to authenticate to system with password/username checking
5-Logout button at Master Page to SignOut the system
that's in brief what i did, So in my next Post i will explain my first step which is web.config settings