Unix, Linux, Windows 2000, Windows XP or PocketPC.
This version of the ChartPlotter will probably not work with Windows 98. Version 0.18. will work on windows 98.
The latest version it not tested on Linux. Old versions have worked fine. If you have less than 64MByte of memory loading image files will be very slow.
Would be fun to hear if someone got it working on a Mac.