private static void handleLaunchOfferReq(SerializableLaunchOfferReq pack) {
		List<String> interestedUsers = pack.commandInfo;
		SelectionKey key;

		for (String userName : interestedUsers) {
			if (null != (key = Server.registeredUsersChannels.get(userName))) {
				
				// send the info about the new service and user
				Server.sendData(key, pack);
			} else {
				Server.loggerServer.error("[Server] the user " + userName
						+ " is no longer logged in");
			}
		}
	}