The Ultimate Mail is a part of the Mail Component which offers a comprehensive interface for downloading e-mail messages from a server and managing your mailbox remotely, all from within your application.
Downloads: 59360 - Shareware - Download Now

Active Query builder is a .NET component to create SQL queries easily. True two-way query builder with powerful user-friendly interface and unique query research capabilities; a perfect choice for both SQL beginners and experienced query writers.
Downloads: 13791 - Shareware - Download Now

Development time can be decreased by over 50%! LLBLGen Pro generates a complete data-access tier and business facade/support tier for you (in C# or VB.NET), using an existing database schema set. In seconds.
Downloads: 46592 - Demo - Download Now

The Spire.flash is the %100 pure .NET class library, which allowsyou to create Macromedia Flash (SWF) files from your application.
Downloads: 26602 - Shareware - Download Now

VintaSoft Twain .NET SDK is the professional TWAIN scanning library for acquiring images from scanner or camera. SDK allows get a list of TWAIN devices, get information about device capabilities, acquire images from device with or w/o device UI etc.
Downloads: 18361 - Demo - Download Now