A collection of C++ classes used to build embedded database engines based on variable block technology. Features: WIN32/UNIX database interoperability. Supports object-oriented and relational databasedesigns in traditional and client/server applications. Built-in support for multi-threaded database applications. Supports fixed and variable-length records. 99.9999% data integrity ensured by 32-bit CRCchecking. Offers best-fit and first-fit block allocation methods to prevent database fragmentation. Built-in exception handling. Allows locking at both the file and node level. Ships with an advanced database recovery utility plus other binary utilities.