Does anyone know where i can get free programming software for the pic 16c73A?

 

I have corrected the title of your thread.

hgmjr

 

MPLAB is a free IDE for PIC microcontrollers, it includes MPASM (assembler)

 

Just FYI the pic16c73A is one-time-programmable so you'll want to simulate before programming the device -- unless you have lots of spares.