Microsoft NET Framework
The Microsoft Net Framework is a pack of routines, libraries, and components that need to run the new Microsoft application that uses NAT Framework Technology.
It is possible that ome files can not be played on your computer and you do not have these files because you have it. You just have to download it and install it and they will run perfectly.
Installation is very easy because you will not have problems when installing.
It is a .NET Framework Service Pack, reinstalled Microsoft .NET Framework 1.1, .NET Framework 1.0, a development pack, Microsoft .NET Framework, SDC 1.1, and .NET Framework 2.0 Beta 2 language settings.