Installing "RIA Services" on IIS 7

To install "RIA Services" in an IS 7.x environment:

1) Download the "RiaServices.msi" file from the Microsoft download page for "WCF RIA Services Release Candidate 2 for Silverlight 4 and Visual Studio 2010".

2) Since you are not expected to have Visual Studio .NET 2010 on the server, it suffices that you only install the assemblies into the GAC. This is done by installing the msi file with these command line swithches:

msiexec /i RiaServices.msi SERVER=TRUE

Cannot uninstall "WCF RIA Services Beta"

There is a bug in "WCF RIA Services Beta" software that makes it almost impossible to uninstall it from add/remove programs in windows. The side effect is that you cannot install the "Silverlight tooks for Visual Studio 2010" without completely uninstalling "WCF RIA Services Beta".

I found this article that proposes a brute force solution to this problem:

http://forums.silverlight.net/forums/p/149912/334721.aspx