I finally managed to install Enthought Python Distribution on my Windows 7 64bit box. In fact, I installed EPD 32bits (I’m a student, the academic licence is free).
So, the solution was in the Mailing List Archive (enthought-dev) : Disable the UAC (User Account Control) of Windows 7 in order to let the msi installer copy and build files everywhere needed !
Now, I’m running Mayavi2, and my future super Geophysical Analysis Package is on tracks !
Enthought Python Distribution : Website
Enthought-dev Mailing Archive : Website