OpenGL program not reaching main

I am programming a 3D application in C++ using visual studio 2010, and after testing the code using breakpoints, I have found that the main method isn't being reached. The cmd window is opening, and I believe that the dlls are being loaded, however I am getting the message at the bottom of the output window

The thread 'Win32 Thread' (0x8a8) has exited with code -1073741510 (0xc000013a). The program '[4112] 3dApp_1.exe: Native' has exited with code -1073741510 (0xc000013a).

If anyone needs more information to help, just let me know, I'm struggling to know what to add without just putting the program up here. Thanks.

edit: For some reason the program had an issue with a .txt file and a .obj being in the source files directory, so removing that allowed an openGL window to be created.

You need to change the entry point in the settings (see here or here).

Go to Project Properties/Configuration Properties/Linker/Advanced/Entry Point. Set entry point to mainCRTStartup.