The 2nd presentation at next week's AJAX World is on AJAX Security.

After just coming back from MI 08 last week where Silverlight 2.0 was the hot topic, I've been thinking about the Silverlight security model. After all, anytime you install a binary extension to the browser there is a security consideration.

ActiveX was sort of all or nothing, Adobe Flash has had security challenges, Java Applets, Windows Forms browser controls, etc.

Shawn Farkas, who keeps a .NET Security log HERE has written several interesting entries on Silverlight security.

Here is a list for your enlightenment.

The Silverlight Security Model

Silverlight Security II: What Makes a Method Critical

Silverlight Security III: Inheritance

Silverlight Security Cheat Sheet

AJAX opens many interesting new doors in terms of how we can tailor the user experience to the customers needs and how we can display content based on any number of state context.

This sometimes means fetching and manipulating HTML or XML in our server side code and sending it to the browser as execution time via an AJAX request.

Earlier today I was "sprucing up" a demo on implementing the "Partial Page Update Pattern" in preparation for a talk on AJAX Patterns that I'm giving at AJAX World next week in New York.

I always try to minimize my demo application dependencies and isolate the concept that I'm talking about as much as possible and I wanted to return some markup to my web page and dynamically update the DOM, but I didn't want to add a file or database dependency so I decided to just store HTML in a VB string.

I wanted more than trivial markup and HTML is time consuming to convert to a programming friendly string, what with all those quotes and all.

I decided to write a little quickie utility to do string conversion of cut-and-paste HTML when a little searching produced a free utility to do just what I wanted.

It's great for testing, demos, or if you have a manual cut-and-paste editing process. (But don't REALLY store HTML in your source code !)

Try it out.

[Just Click Here to get your copy - it's free.]