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NUS Downloader 1.9
NUS Downloader, or NUSD, is a PC Utility designed to allow easy access to the resources present on Nintendo's Update Servers. Using this tool, you can download, pack, decrypt, and manipulate many system titles into WADs ready to install.
Change log (1.5a Beta):
Fixed crash when opening Virtual Console menu
Moved update database option to Extras menu, added ability to download database if none exists
Added ability to download common key (via HackMii blog) if does not exist
Added ability to accept hex STRING versions of the common key
Made the database reading multi-threaded, so as not to delay GUI loading.