The novice need help again

How is it possible to configure the internal oscillator in a pic 12f675 if I don´t want to use a crystal.
And if possible to use Oscon, should I then change anything in "configure chip" if I use (osccon = 0x60;) in a C box, the compiler make error when I compile to hex if I use Oscon In a Cbox.
Hope you understand me, bad English

Best regard
jorgen