AdvancEd presents itself to be a multi-functional problem-oriented editor of flow programs for NC (Numerical Control) systems; this editor could be either embedded into the NC-system software or used as an independent application in some technological department, responsible for implementation of flow programs. AdvancEd provides all functions of the standard text editor and, besides, a number of additional properties, which are specific for NC flow programs. These specific functions are: - Inputting flow-program blocks from the simplified operator panel; graphical context help for every G-function; - Syntactical and semantic tests; correction of inputted blocks; - Calculating the current G-vector (in accordance with the NC system status) in any point of the flow program; looking through coordinates of the G-vector for the current block; - Fulfilling special operations with blocks, such as axes scaling, re-numeration of blocks, etc.; - Working with text files of any volume with higher speed as compared with well-known systems; - Invoking external applications; - Debugging flow programs with the help of breakpoints; simulating the tool trajectory.