Microsoft SQL Server 2008 RC0 Installation
MS SQL Server 2008 Setup Requires .NET Framework 3.5
MS SQL Server 2008 Setup requires .NET Framework 3.5 to be installed.
But letting the wizard to complete the setup of Microsoft .NET Framework 3.5 SP1 (Beta) failed. So I downloaded the MS Framework 3.5 SP1 (Beta) from Microsoft Downloads site and installed it myself.