Here's a WAG. Place a small partition on the drive that can be read by MAC. Put the application on that partition and the NTFS items in a much larger partition.
As Mac can read but not write NTFS, could i not install it onto my mac, copy it to a flash drive (fat 32) then on a windows place the files on the main partition
EDIT: I have found a program called NTFS Mounter 0.4, however this has to be in the applications folder to run, without administrator privileged i can't do so.