DIPSEIL is a learning management system developed by a team from Plovdiv University (BULGARIA) and used in the learning process in various scientific courses – electronics, computer science, communications, physics, etc. DIPSEIL course content structure follows the performance support systems requirements – the content is structured to provide individualized online access to all needed information, instructions, advice, tools and software to enable the student to perform a task with a minimum support from teachers. The new, fourth version of DIPSEIL is extended with a Quiz generation system, which consists of the following modules: 1. Quiz generation module that: supports different types of questions (dichotomous, multiple choice, short answer) and provides immediate feedback on the correctness of answers; 2. Quiz statistics module that provides calculation of: difficulty index, discrimination index, reliability and validity of tests, etc. A study is conducted to explore the impact of the use of DIPSEIL Quiz generation system on the academic results of students in Fundamentals of programming course. The course is taught during the first semester of the academic year 2018-2019. 24 students are divided into two groups: experimental and control. Both groups were taught in DIPSEIL, but the learning of students in the experimental group was supported by DIPSEIL Quiz generation system. The results from the final test exam show that students from the experimental group performed better, which is an evidence that the use of Quiz generation system can improve statistically significantly learning achievement in DIPSEIL.