1L is environment including IDE, form builder, interpreter and debuger (like 1C:Enterprise v7.7 http://www.1c.ru/eng/title.htm) for fast and easy development and execute accounting program. Qt 1L is developed in C++ using Qt4.
COMBuilder is a VB6 app that will allow you to write all COM objects for working with databases. Also, the program will create forms to work with this objects. It is planned to create also c# and vb.net code.