組件只能存取 [開啟檔案] 對話方塊和 [儲存檔案] 對話方塊，並且可以透過這些對話方塊開啟和儲存檔案。這個使用權限可以讓組件取得或保存檔案的內容，而不需開啟檔案或取得這些檔案的檔案 IO 使用權限。

Assemblies only have access to the Open File dialog box and Save File dialog box, and are permitted to open and save files through these dialogs. This permission allows assemblies to obtain or persist the contents of a file without opening the file or being granted File IO Permission to those files.