Sicos1977 

Read Outlook MSG and EML files without using Outlook. The MSGReader supports MSG E-Mail (also signed), Contact, Appointment, Task, Sticky notes and Contact files. The EML reader supports MIME 1.0 encoded files

MsgKit is a 100% managed C# .NET library (no PINVOKE or whatsoever) which may be used for the creation and parsing (in the near future) of messages (E-Mail, Appointments, Journals and Stickey Notes) that are Outlook compatible

A reader that gets text and metadata properties from different file formats through the IFilter interface

Extracts embedded OLE objects from Word, Excel, PowerPoint and Open Office files without needing the original programs.

A very simple library that is wrapped around Microsoft Office that can be used to convert Office documents to PDF. This library takes into account all the strange behaviors that you will get when running this on a server.

A C# .NET library to convert HTML to PDF with the use of Google Chrome

A C# VCardReader that reads an VCard file and converts it to HTML

A small dll with some methods that you can use to check if a file is password protected