I run the actual freeversion release 2.14 and I didnt find any kp or ols files that didnt work yet.
About 6? years ago i used an old freeware release 1.0X? or else. It couldnt handle ols files at all, afaik.
The only prob of the free version is, that you cant save changes to your bin.
therefore Tunerpro works great.
Regards