is there anything that allows an older mac book pro to install airplay
Is there any software that can be installed to allow an older Mac Book Pro to have airplay
Mac Pro, OS X Mavericks (10.9)
Welcome to the Apple Community.
No, there are hardware requirements for mirroring, which older macs don't meet. You can however try a third party alternative to AirPlay, of which there are a handful of different ones.