The e-pr2z4n.dll is part of numerous registry errors. They normally aren’t harmful. It is something that happens to all of our computers. Let me paint a picture for you.
Imagine, if you will, a basement. At first, the basement is nice and clean. It has shelves and cabinets. It looks clean and organized. Then as you use it, the shelves get more cluttered. Then the cabinets get fuller and fuller. Eventually they begin to over flow.
So what do you do? You throw some of them away and leave others. Some of the files get misplaced and others get lost. You have kids, and toys get added to the basement. Before you know it, that once clean basement is overrun with stuff you can’t even remember you had. It becomes harder and harder to find things.
Your computer’s registry works much the same way. ZookaWare PC Cleaner comes in and cleans up your registry making it like new. So if you run ZookaWare PC Cleaner, then don’t be surprised if it finds lots of errors. Just let it do its job, and clean up the mess.