There is a working x64 driver for the DNS-323:
ftp://lizzi555.dyndns.org/Download/WLAN/DLINK/DNS/DNS-323/Tool/DNS-323_PnP-X_Driver_v1.02_11062008.zip
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If you open the device manager it will show the DNS as unknown device or with a ? ...
Rightclick it and install the driver. Afterwards it will show up as disk drive:
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Before installing driver it showed up as Storage and I could connect the shares only via IP-address:
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Now:
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