beWISE provides a very easy-to-use interface for sharing data between your applications, allowing them to exchange information in real-time. Simply share variables among all your VB.NET, VB6 and C programs as if they where global variables.
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Aspose.Diagram is a class library for working with MS Visio files and is a pure .NET alternate for Microsoft Visio Object Model. It enables developers to work with VSD&VDX files on ASP.NET web applications, web services&Windows applications.
Downloads: 43875 - Shareware - Download Now

IBDAC is an enhanced component library for fast direct access to InterBase, Firebird and Yaffil from Delphi, C++Builder and Lazarus, supporting Windows, Mac OS X, iOS, Android, Linux, and FreeBSD for 32-bit and 64-bit platforms.
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Fully Automatic Object Relational Mapper, SQL to Entity Mapper, Stored Procedure to Entity Mapper, LINQ Provider, Code Generator, and Database Generator. Works with SQL Server, Oracle, MySQL, Sqlite, Firebird, MS Access, VistaDb, ODBC, and OLEDB.
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WinI2C/DDC is a powerful solution that allows you to control monitors in Windows environment via DDC/CI protocol.
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