Visual Studio - Where to define custom path macros

Question

I just opened someone else's Visual Studio project and in their build properties they have a few custom path macro's they are using for their include and lib directories. The macro names are things like this:

$(MY_WHATEVER_INCLUDE_DIR)

I could manually replace every single macro with the real path, but it would be nice to just use the macros. My question is, where do I define these custom path macros at?

Answer 1

This link http://msdn.microsoft.com/en-us/library/a2zdt10t(v=vs.90).aspx could interest you. I didn't like the idea of changing my whole system configuration just to build a project. The most interesting part on the page is the last comment :

This page fails to mention how to get to this dialog:

From Property Manager, double click on a property page. Click on "User Macros" under "Common Properties" in the tree control.