This installation service for Perkins EST 2018A Genset Only & 2016C Full Support.
After payment,you will get the download link on the payment page,if you can not get it please ask me for download link.
And you can follow this instruction to install Perkins EST:How to Install Perkins EST 2018A & 2016C on Win7 & Win10
Note:It is recommend you to install Perkins EST 2016C,it is full support,but 2018A Genset Only.All of then are lifetime activation,you do not need pay for subscription.
For Perkins EST 2016C Installation Video Guide Here: