I am trying to find ADABAS Community Edition 6.4 for Windows 7 64-bit. All I am getting Adabas_Community_Edition_630. I downloaded DVD_Version_NAT_220.127.116.11.171_CE which cannot be installed with ADABAS 6.3. It always say “Uninstall ADABAS 6.3 or Deactivate 6.4”. Where can I find ADABAS 6.4 community Edition?