Yes, with some additional work, JDUN can work in a webstart program. JDUN requires native DLL files that need to be on the system path or in the current directory. You must include the DLL files in your webstart application as resources. When your program starts, you can load these resources and rewrite them as files to a directory you know is on the system path such as C:\Windows\System32.

No, for several reasons including browser security and the way applets load in browsers, JDUN cannot work properly in an applet.

Yes, Vista (32-bit) support has been added. 64-bit support has not yet been added. Due to changes in Vista, some JDUN methods cannot work in Vista. Please see the API Specification for details. Additionally, some functionally will act differently in Vista. For example, due to new security, if you try to alter a dial-up entry on the system, it can only edit it at the user level.

There are numerous free java obfuscators available. We recommend ProGuard. For an example of obfuscating an application with JDUN, please see the Usage documentation.