Hy, after reading : http://www.keil.com/pr/article/1055.htm and viewed related webinar, but I'm not in able to exame complete example in webinar I installed Rhapsody in C v6.0 Developer Edition, but I can't see list box entry "IDF_Keil_C51" in "Environment settings" while editing Configuration for samples in "Rhapsody60\Samples\CSamples". How to set-up a link between Rhapsody and Keil ? Thank You! Boris Boris