This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
Take a look at the source code of StrongKey CryptoEngine; it authenticates users to Active Directory as well as OpenDS, a Java-based open-source Directory Server. The code has the potential to work against any standard LDAP Directory Server.