User-1071952197 posted
In most cases, you can switch back to 2.0 as long as you use the original Web.config. The main problem you might see is if you start trying to add 4.0 references to your site and then try to move that back to 2.0.
Thanks Matt, I'll just copy the website to another directory and make the changes in that and see what happens. That way if my tests goes awry, I still have the good copy using 2.0 framework.