Well, using Henry's build of Perl 5.6.1, I still couldn't compile it, with the error can't find the Perl lib.
Running "perl ms_install.pl" was successful besides bitching about the PATH not containing f:\perl\bin but running any examples ends like,
[F:\Perl\lib\site_perl\5.6.1\os2\examples]menu
SYS1041: The name F:/perl/bin/perl__ is not recognized as an
internal or external command, operable program or batch file.
Which upon reading Henry's readme makes sense as he didn't bother to compile perl__.exe, which is the PM version of Perl.
Unluckily all the older perl distributions seem to be gone from Hobbes, pretty shitty as so many things depend on the EMX releases of Perl so now I have to hunt down the latest Ilya build of Perl.
Guess I should start re-uploading some of this stuff to Hobbes as well. I'd assume Python may have the same problem with the old EMX version no longer there and likely the same with other languages where things depend on older releases.
Edit: rereading the readme, henry renamed perl__.exe to perlPM.exe as he was developing an OS/2 GUI toolkit. I'll test renaming it.