How do i transfer vhs-c to my pc??

Question

First i have a panasonic pv-l780d. I seen a plug opening on the back near the battery that said to pc so i hunted around and found the right cable for it. I was hoping it was plug and play but its not it uses a com port so i was wondering how do i get the video from vhs-c to my pc do i need some kind of program?