Well, I found this post in Yahoo and therefore could read this.
I tried, however, I cannot reproduce the problem on my PC's.
The message is misleading, DosUHCI tests for protected mode and if this
is the case assumes its got to be a Windows DOS box the user has
started the driver in. It will also not run with FreeDos within Linux,
since the driver will not run in protected or V86 mode.
Can you send me your config.sys and autoexec.bat by email please, maybe
I can then solve the problem.