The file from windows to python?

Hi

I’m playing with py2exe and I have problem with file name parsing.

I would like to open AC3D file with my script straight from right mouse click menu.

http://www.warezhouze.1g.fi/Here/Blender3d/python/acr_start.jpg

Because I currently use ‘raw_input’ command, I end up to this screen
http://www.warezhouze.1g.fi/Here/Blender3d/python/acr_next.jpg

How I can read the selected/highlighted file name(s) from windows with python script?

Thanks