Watch this for 64 Bit version of numpy and scipy

[Athanassios]

http://www.scipy.org/Download#head-f64942d62faddeb27278a2c735e81ef2a7349db0

http://www.lfd.uci.edu/~gohlke/pythonlibs/

....there you can find 64 Bit versions of numpy and scipy for Python 2.7 .... maybe you can use this 64 bit versions for a 64 Bit numpy and scipy for .Net IronPython ??!