[Inkscape-user] Scripting

Hi all.

I am new in this mailing list and I want some help on writing a little script that I despereted need. I have a huge SVG file. Its resolution is 20000+ by 38000+ and I need to slice it in little PNG peaces with 180x150 pixels. I wrote an batch file (I am a Windows user) that automate this but since it calls the inkscape in the command line to every peace that need to be exported it is very, very, very slow. Some one can guide me in writing a script that could do this in a little less time? I am currently using the version 0.46 of Inkscape in a Windows XP.

Regards.