Luis,

The last time I checked, Sun's Java did not support COM out of the box. You had to use a third-party bridge to get it working, which made things more complex. This may have changed, since MS and Sun are supposedly working on better interoperability these days (do you know Craig?). Here are some options for Java:

http://www.google.com/search?hl=en&q=java+%22com+object%22&btnG=Search

Ruby does support COM on Windows:

http://rubyonwindows.blogspot.com/2007/02/from-vb-to-ruby-creating-objects-via.html

Of course, you could use Web Services instead of COM.

>hello
>please i want to know if i can develope n-tier apllications wiht vb net, visualfoxpro adn other non microsoft languages like java or ruby . For example a class in vfp of one application calling a class in ruby or java ,or viceversa and where can i fidn examples of this?
>
>Thank you
>Luis Martin