First open flash player then chose operating system then install.
This software made by Mustafa Jabbar
Mustafa Jabbar (born 12 August 1949) is a Bangladeshi businessman and entrepreneur. He is the President of Bangladesh Association of Software and Information Services (BASIS). He is best known for being the creator of software Bijoy. He published the Bijoy Bengali Keyboard, the first Bengali keyboard in 1988, which was most widely used Bengali input method around the world until the release of Unicode based Avro Keyboard. He is the only patent holder of any ICT related product (Bijoy Keyboard) till now. Though there has been claims that he used some young computer scientists to get this keyboard developed, pay them, and then licensed their intellectual product in his own name. He has written the first book on this subject and is responsible for organising a movement on Digital Bangladesh. His works for the development of the digital education system is leading the country towards a new era. He is leading the ICT industry as the President of Bangladesh Computer Samity, the national ICT organisation of Bangladesh