Cannot Find or Select .NET 3.5 or .NET 4.5

This is expected behavior. .NET 3.5 extends .NET 2.0 so enabling 2.0 provides access to its libraries and features. .NET 4.5 replaces .NET 4.0 so any 4.x selection activates 4.5 capabilities. This guide details the version mappings, control panel choices, web.config examples, and troubleshooting for