Universal BootLoader Tool helps you easily recover from a failed rom flash, and is known to turn an free update rom into a full rom. (e.g. from the free WM5 update rom available for hx4700 Pocket PCs on HP.com) Only tested with HP iPAQ Pocket PCs.
JaguiD is a Java GUI for DOS. It consists of several sub-projects including a Java Compiler, a Class Runner and a Jar Packager. JaguiD has limited Java support to provide a Graphical UserInterface for DOS and compatibles.