http://bugs.winehq.org/show_bug.cgi?id=12369
--- Comment #11 from Robert Bradbury robert.bradbury@gmail.com 2008-04-07 09:48:12 --- Indeed, that was going to be my next step. And in fact it does appear to resolve at least the startup problem.
To make mega startup properly under wine, one must first run: MozillaActiveXControl.exe which extracts and installs a number of files in: ~/.wine/dosdevices/c:/Program Files/Mozilla ActiveX Control v1.7.12 and may even fiddle with the registry.
After that, MEGA4.exe will start and bring up the standard program window documented in the book. If I can successfully load and perform the tests the book outlines I will consider this bug closed.
I have yet to find anywhere that documents that this is the proper install process for using MEGA under a windows emulator.