of course you can !!! no patches needed
if the operation system code page ( ascii ) supports hebrew
in windows take a look at the control panel settings
and the progress code pages are also defined
so it will know how to work with them
e.g. sorting, which chars are alphabetic/numeric etc.
i don't know if this is something you could be looking for ...
but you can also add translations for different languages
into compiled r-code files using the translation manager
you can find everything you wanted to know about code pages
and everything else in the online documentations
look for the internationalization guide
http://www.progress.com/products/documentation/start_openedge10/index.ssp
hth ... yalla bye