Luxena dbExpress driver for Informix Lite 

is a nice alternative to Borland's one by means of excellent design, good performance, mature bugless status, wide range of supported Informix Servers and advanced features
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ESBPCS for VCL - Trial 

ESB Professional Computation Suite (ESBPCS for VCL) provides a huge collection of Routines and Components to make Data Entry and Manipulation easier for both Developers and their end-users. Includes full source to all components and routines.
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VISOCO dbExpress driver for Sybase ASE (Win32 version) 

VISOCO dbExpress driver for Sybase ASE is a dbExpress driver for Borland Delphi, Kylix, C++ Builder.
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VISOCO dbExpress driver for Sybase ASE (Linux version) 

VISOCO dbExpress driver for Sybase ASE is a dbExpress driver for Borland Delphi, Kylix, C++ Builder.
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VISOCO dbExpress driver for Sybase ASE (Win32 and Linux) 

VISOCO dbExpress driver for Sybase ASE is a dbExpress driver for Borland Delphi, Kylix, C++ Builder.
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KeyDB 

KeyDB is a powerful but compact database engine which groups multiple tables into a single database file. The database engine compiles into your executable so there are no associated files to distribute. KeyDB is a multi-user DB engine with SQL.
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