TL:DR; 100% managed version of ZLIB compression library.
100% managed version of ZLIB compression library. Full C# source code is included.
dotConnect for Salesforce is an ADO.NET provider for accessing data of the Salesforce.com cloud CRM and Database.com cloud database through the standard ADO.NET or Entity Framework interfaces.
LibJpeg.Net is a free and open source .NET version of original libjpeg library that allows you to read and create JPEG images in a .NET compatible language.
It's main purpose is to serve HTML pages, GIF/JPG/PNG images, documents, and other resources that are accessible through Browser clients (such as IE, Mozilla Firefox, Netscape etc..) It is robust, easy to use, fast and for all .NET environments.