The Minnestore database was written by Jonathan Carlson for portability among Smalltalk dialects. MinneStore is a free, object-oriented database that is written entirely in Smalltalk and provides storage and retrieval of complex Smalltalk objects. MinneStore was written with the intention of being used for prototyping and perhaps small applications. MinneStore was also written to be as portable as possible and so uses multiple files and directories that grow in number as the database grows (instead of using something like Microsoft Structured Storage which is not portable).