Hello, I'm implementing a Namespace Extension for the Explorer, where i add a new entry in the desktop containing my custom items to be displayed. When i open the explorer and go to my extension all works fine, it displays my custom items. But when i use for example the notepad open file command and go to my extension no items are displayed, i first thing that was because of the extension (my item does not have none) but when i put *.* in the "File Name" edit and press enter the following error is return: --------------------------- Open --------------------------- *.* The above file name is invalid. --------------------------- OK --------------------------- What is necessary to also display my extension items in the windows open file dialog? What i'm forgetting to do? Thanks Nuno