Hi, I'm a Delphi developer with more than 30 years experience (20 of which I worked for international organizations, including the United Nations). I also have experience in C++, VB, C# and other programming languages.I have in-deep knowledge of Delphi. Interfaces, COM/COM+, inheritance, polymorphic classes, and other topics you are likely to use in your quizzes. So I believe I can help you with your project. If you think you may be interested in my services, please open a chat, so I can provide a CV with verifiable references and further discuss your requirements.