Exporting EPS with Line Weight

Hi

I have a problem with exporting EPS files. I do export them however the line weights are always gone. I know if i plot them they get exported with line weights however i also need to export them in arbitrary sizes. Setting a custom page size does not work because the size i need always changes. I need something like a window selection as i do when exporting EPS files.

Is there any way to plot EPS files with custom file sizes also with line weights ?

I don't think so, but trying using a Polyline with widths. This should correct the problem.