hi as you know when you run execute a perogram in the programming environment it makes a debug folder in which tou can find the .exe file which can be run on windows platform. i did all these for lesson 2-5 and it was true.but when i got to test the lesson 24-26 i didn`t got any answer("Initilation Failed,Error"). i even try to make a setup file the same as when you instal windows i mean using Instalshield but it failed. i would be really grateful if anybody could help me in this matter. saeed

Did you mean that you got the Error message box "Initialization Failed.","ERROR".

If so, then you need to read the source code. It means that your InitGL() returns false. This might because, you do not have the texture files in the right place. E.g. for lesson24, the font.tga should be place under Data directory.