A Schemeinterpreter blended with Ousterhout' s Tk package by Erick Gallesio . STk eXpresses all of Tk as Scheme objects. STk includes a slow CLOS/Dylan-like object-oriented eXtension. STk almost conforms to R4RS and runs on SunOS 4.1.X and UltriX/MIPS. Latest version: 4.0.1, as of 2000-09-24. . . (2000-12-16)