Computer system is useful for improving real time and interactive distance education activities. Especially in the case that a large number of students participate in one distance lecture together and every student uses their own computer to share teaching materials or control discussions over the virtual classrooms. The problem is that within this type of education environment the students need to learn the operation of the support system which runs on their own computers. It is important that the system can support the students to learn the system. This paper proposes a support system for the online operation guidance of computer system in real time and the interactive distance education environment, RIDEE-OOG. The features of this system are: (1) a built-in function in the original distance education support system, (2) it is easily used by the teacher in real time distance lectures, and (3) it does not burden the students. This paper reports RIDEE-OOG's basic design issues and implementation. The effectiveness of this proposal has been confirmed by experiments. (Contains 7 figures.)