To compile a source code written in a language like C with Dev C++ under Windows Vista Operating System, can be a difficult process. Like many problems, there are two ways to solve this one: the quick way or the other, most recommended, one, which may be a lengthy process. The quick solution involves using g++ compiler that can be used with Dev-PSV, replacing the gcc.exe file under the Programs tab of the Tools/Compiler option with g++.exe. The recommended one is by downloading and installing CodeBlocks & Mingw. CodeBlocks which would help find the gcc compiler automatically.