In Windows, when a program offers to locate a file for you, it typically does so by opening an Explorer window pointing at the containing folder with the specific file highlighted. This gives you context about where it is on the hard drive as well as allowing you to manipulate the file.
Are there any guidelines or research about what it should do if you ask it to locate a folder? Should it open the containing folder with the specific folder highlighted, as though it were a file? Or should it display the contents of the folder?