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When I install Telerik_Extensions_for_ASPNET_MVC_2011_1_315_OpenSource than only Extensions for ASP.NET MVC Q1 2011 install successfully other two versions(Extensions for ASP.NET MVC Q2 2011 and Extensions for ASP.NET MVC Q3 2011 not install in local machine) not install so in my visual studio I want to use MVC 2 so please help me how I install other two versions in my local machine?