TIIF is available as a native OS/2 program and works on most modern PCs. A DOS-version is included as well. TIIF is Freeware. Unfortunately there is no documention available. But it behaves in all cases as the original TI-software, but is has some enhancements.
You may download a copy from:
http://acg-bonn.de/downloads/tiif.zip
MfG/Regards
Peter Engels