I successfully installed dos box but was not able to open the url for turbo c++...can i download it from any other site? When i extracted the file there was no tc folder but there was one named tcalc can i copy this one??? then...why is step 13 not working??/
But - TurboC was modern 30 years ago (Gosh, how the time flies). While it allowed for very fast app development, it is far from modern C standards, so unless you are trying some 30 years old source code, there are good chances your C program won't compile.
There are much better alternatives these days for command-line C development (pay attention to free Borland C++ compiler on that same page) - DevC, VisualC etc