Web Development Helper 是一個很值得推薦的IE外掛程式，對於做asp.net，ajax開發有很大的協助。
它提供Http請求及響應跟蹤，頁面指令碼調試，asp.net頁ViewState查看等功能。 我很喜歡這款外掛程式，尤其是它的script功能，可以在即時命令視窗裡運行自己寫的javascript， 以及頁面Dom查看功能，還可以用它抓個圖。
其完整功能列舉如下：
A warning when either debug or trace have been turned on. Ability to hide trace information from the page, and view it in a separate dialog, so it does not get in the way of your page's layout.
Ability to view the page's view state (in various forms: raw, parsed, and decoded) to help you optimize your state management logic.
Ability to view items stored in cache, and remove them for testing purposes.
Ability to shutdown the application (unloading the associated appdomain), in order to test starting it from a clean state.
Ability to log all HTTP (and HTTPS) traffic between the browser and your server, and view request and response details, including those performed via XMLHttpRequest.
Ability to view the live HTML DOM using a DOM Inspector that allows viewing all elements, selected elements, or elements matching ID or CSS class. For each element, you can see the markup, attributes, and style attributes.
Ability to view rich error information for script errors (full call stack, script URL and line number), as well as a script immediate window to execute some script against the current document.如果好好研究一下，相信會對我們的開發帶來很大協助的。
大家可以在這裡查看具體介紹.
