在ASP.NET 2和4上运行相同的Web应用程序

Question

Can you run the same web application (ASP.NET MVC 2) on ASP.NET 2 as well as ASP.NET 4? The application is developed and built for .NET 3.5 SP1.

My initial guess is you can't, due to vast differences in standard web.config files between these two runtimes. Is this correct?

If two web.configs were supplied, one for each ASP.NET version, should it, in principle at least, run correctly?

Answer 1

.NET 2应用程序仍应在Framework 4.x下运行，但不一定相反（取决于您是否使用了早期版本中未提供的任何框架功能）。