You can either do it via Internet or LAN if access to it is provided via the WiFi router, but then the question is reduced to the use of a regular network, as it does not matter if you access is via WiFi or not. You might need an application which plays the role of a server. It could be FTP, HTTP, a custom network service, or something like that. You did not specify where you need to put your files.
Alternatively, you can configure an
ad-hoc (peer) WiFi network. Please see:
http://en.wikipedia.org/wiki/Wireless_ad_hoc_network[
^],
http://windows.microsoft.com/en-US/windows-vista/Set-up-a-computer-to-computer-ad-hoc-network[
^],
http://bit.ly/13hipuG[
^].
In all cases, it has nothing to do with MFC. You need to embrace the idea of separation of concerns.
—SA