How to use a .NET 4.0 web application within a .NET 3.5 web application?

Question

My company has a website built in ASP.NET and targets .NET 3.5. It is too mangled and massive to be converted to .NET 4 in a timely manner. I am tasked with building a ticketing

Answer 1

Assuming that your current site uses AppPool1 targeted to .NET 2.0

Create AppPool2, target it to .NET 4.0 and use it by virtual dir of your app.