THIS IS NOT A STAND-ALONE APPLICATION!

You need BW-Go or BW-Go Free 4.6.4 or higher to use this client,

BW-DGS is a plug-in service for the BW-Go and BW-Go Free applications. Use this service to play on the turn-based Dragon Go Server!

BW-DGS is a very simple DGS client. It can list the games where it's your turn, and you can use a full BW-Go SGF editor to experiment with moves and countermoves before submitting your definitive answer. Supports scoring at game end.
Easy access to Kogo's Joseki dictionary and score estimator from the game board.

Many thanks to JUG from Dragon, to be found at http://www.dragongoserver.net.