PlotLab VCL
Delphi/C++ Builder VCL components library for very easy and fast Data Visualization. The library includes: Scope - scientific chart component for plotting multi-channel data. Waterfall - l data plotting component, especially suitable for FFT results. ... Free for non-commercial use. ... The components allow zooming, navigation, direct printing, clipboard copy, save to file and more. ... All of the components are optimized for very fast data plotting, and support multithreading.
http://bmitov.temp.powweb.com/PlotLab_2_2_1.zip - 15Mb - Download - Screenshot

PGPBlackbox (VCL)
PGPBlackbox VCL Edition is a comprehensive collection of managed components that add PGP support to your Delphi / Kylix applications. PGPBlackbox supports full range of PGP operations, including * File encryption, signing, compression * PGP key generation and management operations * PGP keyring... VCL edition of PGPBlackbox can be used with Delphi 4-7 and 2005/2006, C++Builder 4-6 and Kylix 2-3. ... PGPBlackbox is compatible with OpenPGP, GnuPG and PGP Corporation products. ... 509 certificates with PGP keys PGPBlackbox components are a clean-room implementation of OpenPGP specification,...
http://www.eldos.com/files/sbb/secbboxeval.zip - 16Mb - Download

Data Master 2003 VCL
Data Master 2003 VCL component library provides you with high performance 2D graphics engine specially optimized for scientific and technical applications as well as other reusable components created for DM2003 software. You can visualize and edit numeric data as plot curves and worksheets,... Extensive demos and online help also included. ... Features include: unlimited number of data points and series, labels (data markers), zoom in/out, printing, visual curve editor, fast and flicker-free addition of points, custom drawing and much more.
http://www.datamaster2003.com/downloads/dm2k3vcl.zip - 163Kb - Download - Screenshot

TGetDiskSerial Component
The TGetDiskSerial is a VCL component. You can use it to read the serial number of hard disk easily. As we all know, this serial number is unique in the world. So this component is of great use, for example, you can use this serial number to creat an encrypt number. ... Here you can download examples of above development language at this site. ... The TGetDiskSerial has already succeeded to get the Serial Number in Delphi5, 6, 7, 2006.
http://www.devlib.net/download/tgetdiskserial.zip - 972Kb - Download - Screenshot

AudioLab VCL
Delphi/C++ Builder VCL components library for fast audio processing. Allows audio capture, processing and playback with zero lines of program code. AudioLab supports both the old fashion Wave Win32 API, Audio ACM, and the latest DirectX Media Objects (DMO) and DirectShow, and even allows if... Free for non-commercial use. ... The components hide the complexity of both approaches, and make them look almost identical from the users prospective. ... The developer can choose to go with any of them, to use all, or can switch from the one to the other at any moment.
http://bmitov.temp.powweb.com/AudioLab_2_2_1.zip - 16Mb - Download - Screenshot

SecureBlackbox (VCL)
SecureBlackbox (VCL edition) is the comprehensive component collection for network and document security. Unlike other components SecureBlackbox contains original implementation of all encryption algorithms and security protocols, used in the package, and doesn't depend on third-party libraries... * FTPSBlackbox - client component that implements FTP (RFC 959) and FTP-over-SSL (RFC 2228) protocols for secure file transfer. ... * HTTPBlackbox - client component for HTTP/HTTPS support including Gzip compression.
http://www.eldos.com/files/sbb/secbboxeval.zip - 16Mb - Download

EasyMap VCL
EasyMap VCL is a Delphi/C++Builder components set for creating your own GIS-related solutions without MapInfo, MapX, MapObjects, WinGIS and so on. EasyMap VCL allows to add following functionalities in Delphi/C++Builder application: - MIF/MID vector maps displaying in Longitude/Lantitude... EasyMap is royalty free product!
http://www.microolap.com/gis/components/easymap/em.zip - 2Mb - Download - Screenshot

Managed extensions for VCL
Managed extensions for VCL is the best components suite for . Net interop for Delphi and C++ Builder. Managed VCL can: * Create . Net objects from assemblies not registered for COM, using assembly name or location,  and loading . Net assemblies from streams; * Create and use . ... Managed VCL includes special components for: * ADO. ... Net controls on VCL Win32 form; * Use ADO. ...   * Managed VCL will not turn your Delphi or C++ Builder into . ... Managed VCL can not: * Query . ... Net features.
http://www.managed-vcl.com/download.php - 4Mb - Download

FeedForDev
FeedForDev VCL Control and ActiveX components makes it simple to communicate with users from within your software application! Integrate components into your application, to communicate with users. Use standard RSS feeds and provide users. All you have to do is add the FeedForDev component to... Send sales messages, tech support tips and notify users of new releases and product launches. ... You can then ask the control for types of information from your RSS feed. ... Set the URL to your RSS feed, and let it do the rest.
http://www.feedfordev.com/download/feedfordev.zip - 1Mb - Download - Screenshot

SFTPBlackbox (VCL)
SFTPBlackbox VCL Edition is a comprehensive collection of native components that add add client-side and server-side support for SFTP (Secure File Transfer Protocol) to your Delphi / C++Builder / Kylix applications. SFTPBlackbox includes complete SSH protocol support and supports full range of... This is VCL edition, which can be used with Delphi 4-7 and 2005-2006, C++Builder 4-6 and Kylix 2-3. ... SFTPBlackbox is compatible with all major SSH / SFTP servers and clients on the market.
http://www.eldos.com/files/sbb/secbboxeval.zip - 16Mb - Download