xploreplus 

MailSystem is a suite of .NET components that provide users with an extensive set of email tools. MailSystem provides full support for SMTP, POP3, IMAP4, NNTP, MIME, S/MIME, OpenPGP, DNS, vCard, vCalendar, Anti-Spam (Bayesian , RBL, DomainKeys), Queueing, Mail Merge and WhoIs

This library provides a way to generate sample XML documents that conform to a given XML schema.

This NuGet package includes assemblies needed to use the Microsoft SharePoint Server 2013 Client Object Model for .NET managed applications.

A WebDAV server, coded in C#, which can be used for various WebDAV .NET applications. This server was based on another open source project, also called WebDAV#, maintained by Lasse V. Karlsen.

ModernImageLibrary

DocUI

Several protocols and systems support the storage of files. E.g. cloud services (dropbox, box.net, ...), document mangement systems (ms sharepoint, emc documentum, ...), protocols (webdav, ftp), ... Filedrops FileSystem is an abstraction layer which can be used to write a specific virtual file... More information

Filedrops FileSystem UI

Filedrops OS