How to use different files in a project for different build configurations - Visual Studio C# .net

Question

I have a c# .net winforms solution and I want to create two different builds: one that supports IE6 and one that supports IE7. A few of the files in one of my projects are d

Answer 1

I'm not sure how to do what you're asking, but couldn't you just include both versions of your API wrapper in the dll and determine which one to call at runtime? For example, what if a user installs the IE6 version of your app then upgrades to IE7? They'll need to reinstall, right?

It seems to me like this would be a much simpler solution, but maybe I'm missing something...