To give you a more concrete answer, Visual Studio will definitely compile C code under a C++ project. It will even compile it as C code, not C++ - Visual Studio treats anything with a .c extension as C code and will compile as such by default. This is confirmed in the documentation on MSDN (albeit only specified for VS2008 and VS2010). There is even a compiler command line switch (/Tc) and an option in the properties page of any .c file to compile it as C++ code, rather than the C default.