mbdavid 

LiteDB by: mbdavid
LiteDB - A lightweight embedded .NET NoSQL document store in a single datafile
FileDB by: mbdavid
FileDB - A C# database to store files
FileDB is a free, fast, lightweight C# (v3.5) DLL project to store, retrieve and delete files using a single archive file as a container on disk
NBoleto by: mbdavid
O NBoleto é uma biblioteca para gerar boleto bancário não registrado