TL:DR; 100% managed version of ZLIB compression library.
100% managed version of ZLIB compression library. Full C# source code is included.
Aspose.Tasks is a .NET Project® management component that enables applications to Read, Write and Modify Microsoft Project® documents, MPX Projects and modifying MS Projects 2000-2003 in XML format, Access to Currency settings, Calendars and Tasks.
VintaSoft Twain .NET SDK is the professional TWAIN scanning library for acquiring images from scanner or camera. SDK allows get a list of TWAIN devices, get information about device capabilities, acquire images from device with or w/o device UI etc.
.NET native component that adds sounds editing and sound analysis to multimedia applications. Supports encoding in several audio formats.