Hello, all. Sorry, may be this is not to be asked here... Many many years ago there was an RTOS called iRMX. It run on 80286/80386, was a good RTOS and it also run the whole Windows 3.1 as a task with a lowest priority. Does somebody knows of something similar in the today's world? (No need to say that if that could be RTEMS...:-) Thanks. -- Leon