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Do I remove the reference System.Web.Extensions when upgrading from VS 2005 to VS 2008?

Posted By:      Posted Date: October 19, 2010    Points: 0   Category :ASP.Net

I've got an old ASP.NET 2.0 app, which I added the AJAX Toolkit to, later in development.  When I did that I had to include the System.Web.Extensions.dll in the bin folder of the ASP.NET app, in order for it to work.  Naturally I then included a reference to that assembly DLL into the project, and pointed to it for each page I used it in.

Now I want to upgrade the app to VS 2008.  When I did it looks to me as though it added another reference to System.Web.Extensions from the GAC.  Now VS 2008 is confused and wants me to remove one of them.  The question is, which one do I remove? 

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