: Adds new numeric types (like BigInteger) and improved support for code contracts.
The .NET Framework 4.0 was a major release by Microsoft, serving as the foundation for building and running applications on Windows. The "Redistributable" package refers to the standalone installer containing the runtime and associated libraries required to execute .NET applications, distinct from the SDK (Software Development Kit) used for development.
dotNetFx40_Full_x86_x64.exe /q /norestart