Charting
.netCHARTING, Chart component .Net, Chart FX for .NET, componentXtra .NET Graph Component, Dundas Chart for ASP.NET, eNetricity OrgChart, ERM Diagram .NET, GreenPoint WebCharts3D, Nevron Chart for .NET, ProWorks Chart for .NET
Communications
Mail, .NET CVS Library (NetCvsLib), ABCUpload .NET, AFTek CallControl, AFTek ComControl, AFTek IRControl, AlertPOP .NET, aspNetDns, aspNetMime, ComponentScience TransPort, ComponentSpace .NET Internet Suite
Content Management
ADXSTUDIO, Ektron CMS400.NET, PortSight Meta Tree for ASP.NET, RapidSpell .NET, WebZinc .NET
Database
AxpDataGrid for ASP.NET, Bean Software Search Control, DataForm.NET, DataObjects.NET, db4o, DBNavigator, Deli, Dharma .NET SDK, Directory of .NET Data Providers, eXport.NET
Image Rendering
ArtForms for .NET, ByteSize DynaRender, Image Gallery.NET, ImageGlue .NET, SilkWebware Image Canvas, THBImage.NET, TIFFInfo for .NET, TrueColorToPalette
Reporting
PDF, .NET Logging Framework, ActiveReports for .NET, DataReports for .NET, log4net, OOReport.NET, Report Sharp-Shooter, StimulReport.Net
WebForm Controls
.netCART, .netCHARGE, .netCURRENCY, .netSHIP, ActivEdit Web Editor for .NET, AI Flash'In, Antoniob.com, APNSoft, ASP.NET Barcode Server Control, ASP.NET ExpertMenu
WinForm Controls
3D Control Magic for .NET, Alvas.FileControls, Alvas.ShapeForms, Automated Application Framework, ComponentOne Studio for .NET, CoolLayout.NET, CUESoft XHtml, DataGridColumns, Dinky AutoComplete Tool (DACT), DMControls
.Net Translator
A component that helps you creating multi-language websites and software applications.
9rays.net
Instrumentation Widgets for Mobile Devices : Meters, dials, other .NET components for PDA.
Alvas.Net
Offers .Net components including Alvas.Suite, Alvas.FileControls, Alvas.ShapeForms, Alvas.Controls, Alvas.Scriptor, Alvas.Labels.
Aspose
Provide .Net commponents including Aspose.Excel, Aspose.Word, Aspose.Pdf, Aspose.Chart, Aspose.Spell, Aspose.Recurrence, Aspose.License.
ASPPainter
.NET component can be used to create new and edit existing images. Complete source code is available for developers. Free and commercial versions.
AZMerchants.com
ASP.Net Web Controls includes WebMsgBox (provides server side programmatic access to spawn standard IE VBScript Message Boxes), WebMetaGenerator (generate meta tags refreshing, indexing for search engines, descriptions, and keywords). [Freeware]
BFC MultiLang .NET
A .NET open-source library providing XML-based multi-lingual support for .NET applications and web-applications. It introduces grammatically correct plural phrases.
BFC MultiTheme .NET
A .NET open-source project for multi-themed websites. It can dynamically load themes and their settings. It can be integrated with BFC MultiLang .NET for multi-lingual themes.
BlackBytes Registry for .NET
Provides classes that manipulate the system registry.
BlackBytes Software & Consultancy, Ltd.
Develops .NET components including: Security for .NET, Registry for .NET, DNS for .NET, NetworkTime for .NET, Whois for .NET, TimeZoneConverter for .NET, FTP for .NET.
ByteSize Barcodes
Allow add barcodes to Windows Forms or Web Forms applications. It support the most common symbologies used today including Code 39, Code 128, EAN.UCC 128, UPC-A & UPC-E, EAN 13, EAN 8, Code 11, Code 93, Codabar, Interleaved 2 Of 5, and Standard 2 Of 5. By XHEO.
CenterSpace NMath
.Net components suite contains interfaces to BLAS and LAPACK, random number generators, anova, regression, probability distributions, sparse matrices, hypothesis tests and descriptive statistics.
commandLine .NET
Execute DOS/console commands from within .NET. Returns output, the DOS return code, and completion status. By AS-Pro Software.
CUESoft GPS .NET
Read data from nearly all of today's GPS devices using a serial interface.
decloak
.Net components including: dual listbox with re-ordering, dependent listboxes, click click e-mail reports.
developerFood
Directory of ASP.NET and Widows Forms controls and components.
Devshock .NET EventMonitor
Component for notification of events in application. All information is queued and transfered in standard XML format. With this model the application thread is not blocked.
Devshock .NET ThreadPoolManager
Offer an easy way to manage the .NET ThreadPool.
Digital Synergy
SMPP Toolkit .NET Edition implements SMPP (Short Message Peer To Peer) protocol. SmartCACHE component was produced to enable developers to quickly and easily add caching capabilities to applications.
dnAnalytics
An open source numerical library the .NET Framework. The library is written in C# and provides an interface to native BLAS and LAPACK libraries.
DotLucene
A powerful search engine for .NET applications. Port of Jakarta Lucene. [Open source, Apache Software License]
EaseSoft Barcode
.Net Windows Forms control and ASP.NET control for creating barcode images.
etive.com
Provides .NET components to use in both ASP.NET websites, and winform applications. Including dotEtiveFTP, dotEtiveSocket, dotEtiveTreeListView, etiveAspPack, etiveCreditCard, etiveDNS, etiveMessenger, etiveWHOIS.
Extreme Optimization
Numerical components for .Net includes complex numbers, vectors and matrices (BLAS and LAPACK), numerical integration and differentiation, solving equations, curve fitting, special functions, statistics.
fyiReporting Software's RDL Project
A fully functional report and charting system based on Microsoft's Report Definition Language (RDL). [Open source, GPL]
Industrial DOT NET, Inc
Local IO assembly provides generic access to instrumentation data.
InRule .NET Rule Engine
A rule engine that provides a framework for non-technical logic maintenance and deployment within server, web-based, and desktop applications.
KineticaRT
A collection of .Net components, including Windows .NET Forms ?ontrols, logic components, server components.
Lanap BotDetect
.NET control to protect website from spambot (form robots) with asp.net captcha code image. ASP.NET security solution to prevent automated registrations.
Liquid Fuzion
A resource for free .Net tools, libraries and web controls.
LP-Optimizator (.Net Version)
A .Net component to solve linear programming and optimization problems. By WUTech Computer Ltd.
Nf ProEdit DataGrid
A .Net component that enables a web script generation wizard that can automatically create secure, multiuser, relational database applications effectivily. From simple data entry to advanced editing of tables with one-to-many relation, many-to-many relations, images/files and recursive tables.
NLinAlg
A .NET class library for working with algebra structures such as matrices and vectors. [Open source, GPL]
Olvio IT PlusSuite
Include .Net controls, editor controls, layout manager, notification controls.
Parole Lite
Generate pronounceable passwords. By 4ASPNET.
PortSight Secure Access for .NET
Manages users and their access to WinForms and WebForms applications, Web Services and Web content. It features user roles, permissions, auditing, delegation and import from Active Directory.
PortSight Task Scheduler for .NET
Immediate or planned execution from ASP.NET. It allows processing of long-running ASP.NET pages, running command line utilities or other server-side tasks without page time outs and under a privileged account.
QuaL Software Development
Provides tools and components, such as Content Management, Data Storage and User Security solutions, to the .NET Framework.
Quantum Whale
Editor.NET component is an advanced code editor allowing integration of a highly flexible edit control in your .NET applications; Outbar.NET is a component pack allowing incorporate a side bar control into any .NET applications.
Real Components .NET
.NET components for ASP.NET and Windows .NET applications includes IIS Manager, RSS Manager, Credit Card Validator, Web Header Manager. [Shareware]
Registry Toolkit .NET
Extends the functionality of the Microsoft registry classes. By ComponentSpace.
Security for .NET
Implement managed role-based security for .NET Framework. The Security for .NET enables you to manage Windows security.
SSDN: Simple Service Discovery for .NET
An open source service discovery mechanism for .NET remoting. Also provides a simple naming and directory service.
Subsembly
.NET components based on e-Banking standards (FinTS, HBCI), e-Government standards (OSCI) and smart cards (PC/SC, CT-API).
Trace Listeners .NET
A cyclic file trace listener. By ComponentSpace.
USPExpress Math Parser .NET
Parse and evaluate scientific, engineering and mathematical expressions on-the-fly. BY Unisoft Plus, Ltd.
WebCab Components
.Net components for financial and mathematical applications.
WireFactor
Provide BusinessComponent to load an XML schema to a DataSet at design time and pre-built business objects based on BusinessComponent architecture including Order, Credit, Party and Enums components.
XHEO Licensing
Secure declarative licensing for .NET. Using RSA public-key encryption the license files stay secure and unaltered by the end user.
ZXValidator
.NET component for credit card numbers validation. It currently supported credit card types: Visa, MasterCard, Amex, JCB, Diner's Club, Discover/Novus.