Platform-independent recursive search library. C-API, written in C/C++, with mappings to C++, COM, D, Java, .NET, Python, Ruby, STL, with more to come.
Voodoo Exchange Networking Library is a D library that provides a simple API for creating streaming, peer-to-peer TCP connections between two clients, even if they are behind NATs or firewalls, by attempting multiple NAT traversal algorithms.