MS Outlook 2007中的Visual Basic宏的目录选择器

I wrote a Visual Basic macro for archiving attachments for Outlook 2007, but did not find a totally satisfactory way for showing a directory picker from the Outlook macro. Now, I don't know much about either Windows APIs or VB(A) programming, but the "standard" Windows file dialog I see most often in Microsoft applications would seem like an obvious choice, but it does not seem to be easily available from Outlook's macros.I wrote a Visual Basic macro for archiving atta