I am currently using the RadFileExplorer in conjunction with a CustomFileSystemProvider (Hooked to a network share, base on a demo I found here). And while I can upload and download files just fine, it appears that creating folders, renaming items, and deleting items all fail. Deleting told me the application did not have sufficient permissions. What permissions are required? I tried setting the folder up for access to Everyone with Full Control, but that did not seem to help. I even attempted to setup the web to run as the local machines Administrator, but still no luck. Any ideas?