I was installing MacOS Leopard a few weeks ago and ended up unzipping the HFS file system DVD to my desktop. It created a file path the likes I have never seen! In order to get rid of it I couldn't simply click the "delete" button without getting an error about the file path. reminded me of the times of FTP tagging! I fould this nice articule to delete long file paths:
http://support.microsoft.com/kb/320081
Hope this helps some of you!