Sniper from Xeus Technologies is a powerful component that helps developers to add key logging functionality in their applications. Sniper is a small ActiveX control that encapsulates all the complexity for logging keys and exposes only a few important properties and methods, which makes it very simple to use and integrate in applications. JCL is a simple Java API that allows loading classes from Jar files. It uses a custom class Loader to load classes from JARs, which helps in isolating class loaders and it even makes it possible to load multiple versions of the same class file from different jars. JCL also integrates with Spring; the integration is tested with Spring 2.5.