FYI, I have BOTH Visual Studio 2010 Ultimate version AND express edition(Visual web developer) installed on my computer.
I open up Web Platform Installer and select "SQL Server 2008 R2 Management Studio Express" and when I try to install a pop-up message appear: "You must install Visual C++ 2008 SP1 before you can install SQL server 2008 Management studio express."
What should I do?