hi Thomas,

 hl>>> I tested the rsx which appeared in the gtex package from CTAN, and
 hl>>> the messages disappeared.

 hl>>> gtex? CTAN? Greek to me...

 TS> CTAN is the Comprehensive TeX Archives Network, i.e. the set of ftp
 TS> servers that mirror each other and offer the latest in TeX and its
 TS> accessories, both system independent stuff like TeX macro packages,
 TS> and implementations for certain machines and OSs like Dos (we still
 TS> argue about this), OS/2, Unix, Mac etc.

Thanks, ftp.cs.ruu.nl:/pub seems to fit:

TEX  TeX3.1, fonts, emTeX (MS-DOS), styles, TuGboat, TeXmag
tex-archive Mirror van ftp.dante.de TeX archief

so I'll have a look there for a gtex*.

 TS> RSX is a replacement Dos Extender for the emx program that is required
 TS> to run emx+gcc-compiled programs under Dos if you want or have to use
 TS> DPMI, i.e. run such programs under Windows, together with emm386 etc.

Or in OS/2 DOS boxes.  Sometimes it is more conveniant than HSTART/WAIT.

regards,
         hugo