BOAPI is an implementation of default often used business objects in different programming languages with an identical public interface. It supports PHP 5.3 (with namespaces), C# (.NET port), and Java.
The Id3TagLib.Net library provides reading and writing of ID3v1, ID3v.2.3, and ID3v2.4 tags. It is written in C# with the .NET 3.5 framework. It can also be used with Mono-based projects.
A security audit and hardening tool.
A microblogging script.