1. just a note, in case you've noticed it already, 7za can't work with this ixemul version because vfork() is needed which broken with here.
hence ixemul 49.17 can work with programs which do not uses vfork(), sing
2. if a DOS path isnt working just type the same path in UNIX format and it should work.
- ixemul.48.x work with 7zip.
- without path, 7zip work (all in ram: for example) or maybe button on dopus4 (not tested).