Silverlight 2 projects can't be created with the Silverlight 3 Tools for Visual Studio 2008. When Visual Studio 2010 is released, you will be able to build both Silverlight 2 and Silverlight 3 with the same IDE. But for the immediate future, you will need Silverlight 3 Tools to build Silverlight 3 projects and Silverlight 2 Tools to build Silverlight 2 projects.
If you already have Silverlight 2 Tools installed, you can easily upgrade to Silverlight 3 Tools by running the Silverlight 3 installer. To downgrade from Silverlight 3 to Silverlight 2 tools, you will need to uninstall "Microsoft Silverlight" and "Microsoft Silverlight Tools for Visual Studio 2008" from Add/Remove programs before re-installing Silverlight 2 Tools.
If you plan to switch frequently between Silverlight 2 and Silverlight 3, the utility below should make the process a little faster.
To install Silverlight 2 Tools for Visual Studio
To install Silverlight 3 Tools for Visual Studio
To install Silverlight 2 Tools for Visual Web Developer Express
To install Silverlight 3 Tools for Visual Web Developer Express
To downgrade a project from Silverlight 3 to Silverlight 2
URL : http://wildermuth.com/downloads/Setup_SLTools_U... I've been using Amy Dullard 's great batch file
Thanks Amy! It works great :)
Interested in getting started with Silverlight 3 but need to keep your development environment available
But when you switch SDKs, can you make it switch the runtime installed in the browser as well? I need to test my SL2 apps in SL2 to see any bugs that may be present in SL2 but fixed in SL3.
here is a cool post on going from SL3 to SL2 on the same dev box. http://blogs.msdn.com/amyd/archive
Developing for Silverlight 2 and Silverlight 3
I did as you mentioned, but when i change the import section of the project file, Visual Studio says that this version is not supported ?
what have i made wrong ?