RSS .NET Component: Enable your application to easily consume or create RSS feeds. Provides unified feed parsing support for RSS 0.9x, RSS 1.0, and RSS 2.0.

Blogger API .NET component for managing blogs at blogger.com. Can download blogs, retrieve information, create new blogs and posts, edit posts, and delete posts.

Bossware’s SMTPClient is a .NET SMTP client for adding outgoing E-Mail-Adresse to apps and to Web Seiten. It doesn’t use .NET’s resource-hungry System.Web.Mail, which is merely a wrapper for CDONTS and CDOSYS. Written in 100% managed C# and CLS compliant.

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Yahoo! Site Explorer API .NET Class Library for Microsoft .NET web sites and applications (ASP.NET, C#, VB.NET). Enable apps to find Seiten indexed by the Yahoo! search engine; find the inbound links as counted by Yahoo.

Blogger 2.0 API .NET component for managing blogs at blogger.com. Can download blogs, retrieve information, create new blogs and posts, edit posts, and delete posts.

RSS .NET Component: Enable your application to easily consume or create RSS feeds. Provides unified feed parsing support for RSS 0.9x, RSS 1.0, and RSS 2.0.

MetaWeblog .NET Programmierung API for managing blogs. It enables applications to create new blog posts, edit existing posts, retrieve blog information, and upload media objects.

Provides a Blogger 1.0 Microsoft .NET Programmierung API for managing blogs. It enables applications to create new blog posts, edit existing posts, retrieve blog information, and delete blog posts.

Technorati Class Library (API) for Microsoft .NET web sites and applications (C#, VB.NET, ASP.NET). Enable applications to search for blogs, find links to blogs, query for blog info, etc.

Movable Type Class Library (API) for Microsoft .NET web sites and applications (C#, VB.NET, ASP.NET). Download recent posts, fetch blog trackback information, fetch/update post categories and download blog category lists.

COM library for Visual Basic 6, providing functionality to retrieve emails from mailserver (POP3).

.NET lacks FTP classes. KCommon FTP component lets programmers build .NET apps so users can send or receive files via FTP. Supports synchronous and asynchronous transfers. Supports passive but not active mode. Written in C#. Doesn’t support proxies.

Teroid ASP Record Selector is an ASP .NET control listing data from a column of an ADO .NET source, enabling users to select a record. When the users clicks a link an event is raised which can be used to open a page containing the whole record.

Atom API .NET component for downloading, creating and manipulating Atom feed documents. Atom is an XML format for editing, syndicating, and archiving weblogs and other episodic web sites.

ASP .NET Multi segment display control

Popular XML parser for C#, VB.NET, and ASP.NET

COM library for sending emails from Visual Basic 6 and other COM-compliant Programmierung and scripting languages. Supports multiple recipients, E-Mail-Adresse (MIME) attachments, AUTH and POP3 authentication, HTML E-Mail-Adresse, custom headers, embedded objects

Teroid ASP Data Browser is an ASP .NET control presenting data from any ADO .NET source in a variety of customisable and user-navigable formats.

SourceGrid is a basic .NET grid control. It allows simple data to be displayed without relying on XML. Useful for simple apps, it lacks databinding, WYSIWYG design-time and printer support, as well as grouping and master/detail capabilities.