http://www.sra.co.jp/people/akira/os2/akan/index.html
It works for non-japanese version OS/2 to display japanese text. It is very old program, written with MS-C and 1.X API, so I cannot maintain this any more, but if someone want to see japansese text, this one still works on Warp3/4.
Url: http://www.sra.co.jp/people/akira/os2/index-e.html
Source: