Changing auto-released object to non-auto

Is there a way to change an autoreleased object to one that is non-autoreleased?

NSCoder's decodeObjectForKey returns an autoreleased object, which messes with a couple memory systems in my app. How can I change its returned value to a non-auto开发者_StackOverflow社区released object?

I know I can run retain on it, but if I release it, it'll still remain autoreleased. Whereas, I want to manage the memory myself.

Set up an autorelease pool before you retrieve the autoreleased object. It will be in that autorelease pool. Retain the object. Now release the autorelease pool. Your object is no longer in an autorelease pool. It's retained, and it's now your responsibility to release it.