KL - apparently not. Booked a codeshare flight on KL, they said it had to be paper-ticketed, and KL wouldn't even check me in for the CO flight, which meant a stop at an AMS transfer desk that I didn't have time for....
(BTW: never schedule a one-hour connection in AMS. That airport can take half an hour to walk accross, so a slight delay in an inbound flight can force you to run like a bat out of hell.)