Thanks to the research and the checksum calculator done by

calloatti (thread at )»DWL-G800AP and DWL-G810 interchangeable?

It is now possible to update the MN-740 with the D-Link firmware and get WPA.(At your own risk)

Files required:MSBNDownload.exe( »www.microsoft.com/hardware/broad···ain.mspx )

Modified Files Required:-MN740_01.00.02.0022_RUNTIME.bin(attached, dgl3420_firmware_101.bin hex edited and checksumed for MN-740 )

-ComponentReleases.xml-PackageCatalog.xml( files required for the Microsoft Broadband Networking Update to update the "new" firmware"

Recommended the D-Link manuals, since all the configuration will done exactly like a D-Link DGL3420 after the flash»ftp://ftp.dlink.com/Wireless/dgl3420/M···_100.zip

1) Update the MN-740 to the following version using MSBNDownload.exeXbox Wireless Adapter (MN-740) boot firmware 1.3.0.5Xbox Wireless Adapter (MN-740) runtime firmware 1.0.2.22

2) Turn the MN-740 into a DGL3420 using special files and the Microsoft Update tool-Run MSBNDownload.exe-it will extract files into %TEMP%\MSBNDownloadTemp-it will then say "Welcome to the update wizard"-Copy the 3 modified files into %TEMP%\MSBNDownloadTemp-Click Next-It will locate you xbox MN-740 adapter and say there is a new update of runtime firmware to 1.0.2.22-Follow through with the update, do NOT cancel it, it will take a long long while-Eventually the update will say it failed.-At this point you can insure it was sucessfull by clicking retry, if the upgrade worked, the xbox MN-740 will NOT be found (it behaves like a D-Link 3420 from this point on)

From this point on configure using the DLink Manual using a web broswer (firefox did not work) at »192.168.0.30 user admin no password

Untested:-Xbox Dashboard configuration-Super A/G Mode

I hope this is as usefull to others as it is to me

http://www.dslreports.com/forum/remark,13724485