Assuming you have MicroCode Studio Plus, you need to load the Bootloader firmware in your PIC first with your favourite PIC programmer.

Then you need to build the according circuit as stated in the help file. like bellow

And last step, in your code you need to add this line at the top of your code
Code:
DEFINE LOADER_USED 1
Mecanique MicroCode Studio help file will explain it better and in english .

alternate explanation : http://www.mecanique.co.uk/code-stud...20Requirements