Yes, 3.5 sits on top of 2.0 and uses 2.0 for most of what it does. You should just be able to set a reference to the 2.0 DLL. If you reference the project, it will get recompiled into 3.5.

>Hi all,
>
>I have an applcation using the 3.5 Dot net framework but I need to use a component that was built with the 2.0 framework. Previously when I upgraded a project from 1.x to 2.0 it failed until I got a new version of the component. I had heard the 3.5 framework was built on top of the 2.0 so is this going to be a problem for me to use this component in a 3.5 project? What do I need to do to be able to reference this in my 3.5 project?
>
>Thanks
>Tim