Script Debugging in Internet Explorer is turned off by default. You can enable it by going to:
For Windows XP SP1 and Previous Versions
Tools -> Internet Options… -> Advanced -> Disable Script Debugging
* This will enable script debugging for all applications that host the WebBrowser control (ie. Outlook)
On Windows XPS P2 and beyond, the option has been split to two
Tools->Internet Options…->Advanced->Disable Script Debugging (Internet Explorer)
Tools->Internet Options…->Advanced->Disable Script Debugging (Other)
Once enabled, you will get a new menu under “View > Script debugger” which can help you to debug your scripts.
There are generally three popular Microsoft applications that can be used for script debugging.
Miscrosoft Script Debugger:
The Microsoft Script debugger allows you to debug client side and server side scripts and provides the same functionality as most debuggers do.
Download MSDN Tutorials and more tutorials
Microsoft Script Editor
The Microsoft Script Editor comes free with Microsoft Office XP/2003 with FrontPage. MSDN Tutorial
Microsoft Visual Studio .NET
Download the free “express” version of Visual Studio from Microsoft. The DVD iso image cost only around 895MB. Download here