What: Joy

 Where: (URL broken, discovered 2016-09-07)
 A recovered copy is here:
 Description: Commercial software free for evaluation purposes.
        Provides the ability to integrate Java, Objective-C, JavaScript,
        Tcl, and C, all from one language.  Tcl support is no longer
        the lanuage of choice for new functionality, but continues to
        be supported and enhanced.
 Updated: 04/1999
 Contact: mailto:[email protected] 

Not to be confused with a functional Forth-like language called Joy - see:

Category Application