So, the Flickr tool for uploading has been written on Vista, because I don’t want to dirty the XP game box. Hehe, yeah compiled on Vista means it doesn’t run on XP. The shell32 reference in the Interops is Vista’s and you get an Interface error on XP about missing items. If you use an Shell32 Interop you must compile a version of the app on the target OS. That sounds like a fun build farm to make for a 20 project.
Loving the Vista!