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.
The Java Intermediate FAQ links to an article that describes how to properly use Runtime.exec(). There are some aspects to it that are not obvious and often cause problems. But it works well in general.