Microsoft NET Framework installs the .NET Framework runtime and associated files required to run applications developed for .NET Framework. This provides increased scalability and performance to applications through improved caching and deploying and updating applications via ClickOnce.
It is not possible to install two different language versions of . NET Framework on the same computer.
Other Versions
If you are looking for an older version of Microsoft .Net Framework, you should be available to find it
here on the Microsoft website.