Is there a way to specify assembly references based on build configuration in Visual Studio?

Question

I have a project that adds some extensibility to another application through their API. However, I want to be able to use the same project for multiple versions of their app

Answer 1

There is a way to do this, but you will have to hand edit your project files. The project files can have a Condition attribute applied to them in many of the elements, including the one for references.

You can add these to your references to specify when the reference should be used:

You then define several build configurations (V1, V2, V3) and each reference will be included only in the relevant chosen build configuration.

Combine this with conditional compilation symbols and #if statements in your code and you should be able to do what you want.

A thing to be careful of if you do this is that it is easy to have Visual Studio remove the conditional attributes from the project file.