As ** **printed information resources are replaced by electronic journals and online databases, collectively referred to as "e-resources", libraries and information providers are faced with a new situation: they are now expected to perform centralized management of both physical documents they've purchased or simply access, or that are stored on the internet and distributed worldwide to participants paying a usage fee. Tasks associated with this work, if to be carried out effectively, require specialized management software.***To process modern database content, support for HTML 5 / WebSockets is essential. Management software for eResources typically does not support WebSockets.*****FROM NOW ON!**HAN 4.5 offers exactly this option. HAN 4.5 is available starting November 15, 2017. For more information see: https://www.hh-han.com/en/