From: Roger Pack Date: 2010-01-16T12:52:25+09:00 Subject: Re: How to know the OS architecture (32 or 64 bits)? Charles Nutter wrote: ENV_JAVA['sun.arch.data.model'] Thanks I've included that. @Trans "why this isn't in core" I'm really not sure :P -r -- Posted via http://www.ruby-forum.com/.