FCKEditor is retired, but still widely used in many web applications. One of its great features is file manager that can be both invoked from editor or be used by itself. One of most painful limitations that this built-in file manager has is inability to delete files. But, as it turned out, it’s not a hard task to implement this functionality on Your own. In this post I’ll demonstrate how to do it in asp.net application(client-part is applicable for any other server-side framework).