PDFsharp: .NET library for creating and processing PDF documents on the fly. SSH.NET: .NET 4.0 library for SSH client protocol. MailSystem.NET: suite of .NET components with support for SMTP, POP3, IMAP4, NNTP, MIME, S/MIME, OpenPGP, DNS, vCard, vCalendar, Anti-Spam (Bayesian , RBL, DomainKeys), Queueing, Mail Merge and WhoIs. Json.NET: makes working with JSON formatted data …