x264_64 AVS open error

[Yiu]

Hi, Doom. I'm not new to DVD ripping or conversion at all, but I am having trouble with trying to get x264 to function correctly.
I have this as a cmd:

"C:\x264 BitRate Calculator 3.1\X264\x264_64.exe" --vbv-bufsize 2500 --bitrate 2000 -o "C:\ia3.264" "C:\ICE AGE 3.avs"

and here is my AVS file:

DirectShowSource("D:\Users\Yiu Korochko\Desktop\ICE AGE 3.mp4", fps=25.000, audio=false, convertfps=true)

I am developing a video calculator/converter for x264 and it is nearly completed.
I can get lame to encode the audio of the file yet x264 refuses to work with my AVS file and I get this error:

avs [error]: failed to load avisynth
x264 [error]: could not open input file `C:\ICE AGE 3.avs

I know how to use MeGUI in great depth, but I'd like to finish off my program so that I can convert faster and easier, so any help is appreciated.

*NOTE: I ripped my own Ice Age 3 DVD, I did not obtain the file illegally. It is only used here as an example.*