New Post: No ideas about Geoprocessing usage?

Does the Shapefile "Difference" method work? Are there any known limitations that would prevent it from working? What is the proper syntax / usage for using this method? I am trying to perform a Difference operation between two shapefile layers - one is Polygon-based, and the other is Polyline-based

It's very important to know if this method works. If it doesn't, I need to move on to another solution.

Thanks!