Stormkeeper: It's a linker error, not an include error.
Kosh, please post the errors!
Right here:
--------------------Configuration: opengl practice - Win32 Debug--------------------
Linking...
practice.obj : error LNK2001: unresolved external symbol _auxDIBImageLoadA@4
practice.obj : error LNK2001: unresolved external symbol __imp__glTexImage2D@36
practice.obj : error LNK2001: unresolved external symbol __imp__glTexParameteri@12
practice.obj : error LNK2001: unresolved external symbol __imp__glBindTexture@8
practice.obj : error LNK2001: unresolved external symbol __imp__glGenTextures@8
practice.obj : error LNK2001: unresolved external symbol _gluPerspective@32
practice.obj : error LNK2001: unresolved external symbol __imp__glLoadIdentity@0
practice.obj : error LNK2001: unresolved external symbol __imp__glMatrixMode@4
practice.obj : error LNK2001: unresolved external symbol __imp__glViewport@16
practice.obj : error LNK2001: unresolved external symbol __imp__glHint@8
practice.obj : error LNK2001: unresolved external symbol __imp__glBlendFunc@8
practice.obj : error LNK2001: unresolved external symbol __imp__glEnable@4
practice.obj : error LNK2001: unresolved external symbol __imp__glDisable@4
practice.obj : error LNK2001: unresolved external symbol __imp__glClearDepth@8
practice.obj : error LNK2001: unresolved external symbol __imp__glClearColor@16
practice.obj : error LNK2001: unresolved external symbol __imp__glShadeModel@4
practice.obj : error LNK2001: unresolved external symbol __imp__glEnd@0
practice.obj : error LNK2001: unresolved external symbol __imp__glVertex3f@12
practice.obj : error LNK2001: unresolved external symbol __imp__glTexCoord2d@16
practice.obj : error LNK2001: unresolved external symbol __imp__glBegin@4
practice.obj : error LNK2001: unresolved external symbol __imp__glColor4f@16
practice.obj : error LNK2001: unresolved external symbol __imp__glClear@4
practice.obj : error LNK2001: unresolved external symbol __imp__wglDeleteContext@4
practice.obj : error LNK2001: unresolved external symbol __imp__wglMakeCurrent@8
practice.obj : error LNK2001: unresolved external symbol __imp__wglCreateContext@4
Debug/opengl practice.exe : fatal error LNK1120: 25 unresolved externals
Error executing link.exe.
opengl practice.exe - 26 error(s), 0 warning(s)
Here was my setup, dl the visual c++ version of that program, then copy the source code (not the .cpp file). Then create a new blank win32 application, then create a new source code file. then paste the text. Also copy the Data folder and put in your new project folder, don't change the name or anything. That's what I did.