I think that Lotus WordPro can do this, but I'm nervous about installing it under ArcaOS. As I recall Lotus did a lot of editing of config.sys in order to run.
It does add a few things to CONFIG.SYS, but the only bad things are additional lines for TEMP and TMP (the Lotus versions should be removed, immediately after installing).
If you use LCSS (Logical Config.Sys Sort) it will become immediately obvious what was added (except for TEMP and TMP).
http://hobbes.nmsu.edu/download/pub/os2/util/config/lcss-0-5-1.wpiThe only other problem, that I have seen, is that the available disk space calculation may determine that you run out of space on the install drive. That has something to do with using counters that wrap at 64 GB (I think). If you have 64 GB, or less, free space, there should be no problem. If you have more, fill it up with something, and remove it again after the install.