no...
ok this is how it is, a .xbe is like it's own OS so once you load a .xbe your on that OS.
(example)
M$ Dash = windows 5.1
unleashX = Windows 98
XBMC = Windows Xp pro
.....UIX = vista (lol looks nice and flashy but an't worth s**t)
SO... if your on UnleashX then any config you need to setup for the wifi is in there, Not on MS dash as that's it's own OS.
A good Dash to use would be XBMC (it's not just a media player anymore) Or seeing as your wanting to dump games... i would use DVD2Xbox (UnleashX is NOT good for dumping games)
Ps... if your going to use wifi to dump games, Be ready to wait a good 2 hours for each game LOL