Urgent question: when Gcode over 100M

Hi guys,

I am DIY 3d printer player and I tend to make biger model, I have been struggling a problem recently and tend to ask for help from you experts.....
Software:Pronterface
system:Windows 7
32 digit
When I try to load a file with GCODE over 100M, it shows " Bad value for variable 'last_file_path', expecting type 'str' (ascii)" and I cannot proceed on anyway. By the way, there is no problem when I load smaller file less than 100M.
Furthermore, I have checked the error memo and found below error notes:
Traceback (most recent call last):
  File "pronterface.py", line 1407, in loadfile
  File "printrun\gcoder.pyc", line 153, in __init__
  File "printrun\gcoder.pyc", line 268, in _create_layers
MemoryError

When I tried to effect with Repetier software for the file over 100M,it shows error as attached pic.

Can any experts save me?

Lee