ASP.NET MVC 3 Beta was released earlier this month. I tried to install it through the Web Platform Installer, but got the message: “The product you are trying to install is not supported on your operating system“. I run Windows 7 32 bit and that is of course supported. The solution is to download the installation files from this web site.
If you encounter the message: “This product requires Microsoft ASP.NET Web Pages 1.0. Please install the missing component, then try to install this product again.” when running the MVC 3 beta installation, go back to the same website and download the AspNetWebPages.msi file and install this first.