Ah, Sierra. I played Return to Krondor back in the day, and it's a great game. Unfortunately, and if I remember correctly, the installer was kind of bugged. See, when you installed the game, it created a Sierra folder in your desired destination folder. But when you uninstalled it, it removed everything in the folder that contained the Sierra folder. I luckily installed it in my Games folder and only lost some games in the process. If you installed the game in to the root of you C drive and then uninstalled it... Well, you were in for a fun evening.

Thanks Sierra. I'm glad you're dead.