mounting a linux drive on a windows explorer across the inte…

Hello,

Is there any program that would allow me to mount a Linux drive on to
windows explorer(File Manager) across internet? I use SAMBA to hook up the
Linux shared drives to my local home windows boxes, but I want to have
access to the same drives at my office.

Some web sites(xdrive.com) did that. Is there any FSF/GNU available?

Sundar