http://www.medienzentrum-ansbach.de/infoseiten/download.htm
A interactive tutorial/IDE style introduction to Tcl and extensions. (in german)
US In order to try it, I just downloaded it (Linux version). tar stops unpacking it due to an error. From the listing I got so far I could see, that it contains .dll's for tktable and tkhtml. They will certainly not work under Linux.