Visual studio 2008 creates a problem when it starts debugging the javascript. It actually generates a number of files by name anonymous code which leads to a slow debugging in development environment.
In IE 7 you can disable the script debugging directly from IE tools. But in IE 8 it doesn't work, there are some workarounds given by microsoft as I thought it is good to paste here.
Work around:
1. This work around requires the Silverlight 2 Tools for Visual Studio 2008 SP1 to be installed. So if you don't have these tools installed, you can download them from Microsoft (Click Here). If this is not an option for you, there is some alternative work arounds at the bottom of this blog post.
2. Right click on your project and open up project properties
3. Go to the 'Start Options' sheet, and click the 'Silverlight' button at the bottom of the screen. Because the debugger cannot debug both Silverlight code and Script code at the same time, this will disable Script debugging and therefore avoid the problem.
Alternative work around – disable all script debugging:
* Open a new command prompt (start->run, cmd.exe). If you are on a 64-bit computer this needs to be a 32-bit prompt (start->run, c:\windows\syswow64\cmd.exe)
* reg add HKLM\SOFTWARE\Microsoft\VisualStudio\9.0\AD7Metrics\Engine\{F200A7E7-DEA5-11D0-B854-00A0244A1DE2} /v ProgramProvider /d {4FF9DEF4-8922-4D02-9379-3FFA64D1D639} /f
If you are using Visual Web Developer Express, replace 'VisualStudio' with 'VWDExpress':
* reg add HKLM\SOFTWARE\Microsoft\VWDExpress\9.0\AD7Metrics\Engine\{F200A7E7-DEA5-11D0-B854-00A0244A1DE2} /v ProgramProvider /d {4FF9DEF4-8922-4D02-9379-3FFA64D1D639} /f
If you want to restore your computer so that you can debug scripts again:
* reg add HKLM\SOFTWARE\Microsoft\VisualStudio\9.0\AD7Metrics\Engine\{F200A7E7-DEA5-11D0-B854-00A0244A1DE2} /v ProgramProvider /d {170EC3FC-4E80-40AB-A85A-55900C7C70DE} /f
Work around for performance problems caused by 'anonymous code' nodes:
Some sites run into problems being debugged due to numerous "anonymous code" nodes in solution explorer. For these sites, instead of disabling script debugging completely, it's possible to disable just the 'anonymous code' nodes. This requires Visual Studio 2008 SP1. To do so:
* reg add HKCU\Software\Microsoft\VisualStudio\9.0\Debugger /v HideAnonymousScriptCodeNodes /t REG_DWORD /d 1 /f
Hope this helps!!
-Azhar
