I'm not sure I understand the problem. You can access the device's folders and files over the network using ActiveSync once you've made an ActiveSync connection over the wireless network, either by selecting "Explore" in the ActiveSync window on your PC, or by selecting "Mobile Device" in "My Computer" on the PC.
BTW, please pay attention to which forum you're viewing when you click on "New Thread." There is a forum here for CE 4.x .net/CE 5 devices; where you opened this thread
(Handheld PC Professional
) deals with CE 2.11 devices.