0install 

Zero Install management of implementation caches, digital signatures, etc.

Microsoft.Deployment.*.dll libraries extracted from WiX Toolset. Useful for extracting .cab and .msi files.

Zero Install services for solving dependencies, downloading implementations, executing apps, etc.

Utilities for creating and modifying Zero Install feed files

Zero Install interfaces/abstractions for types from ZeroInstall.Services package

Zero Install methods for integrating applications with desktop environments (creating menu entries, etc.).

Command-line interface for Zero Install (both an actual CLI and a library for building other clients)

Zero Install data model for the feed format