State of knowledge

January 2024

Software operating systems

Supports 64-bit Microsoft Windows systems with Microsoft .NET Framework 4.8

Server services

Server operating systems

End date for support

Microsoft Windows Server® 202214/10/2031

Microsoft Windows Server® 2019


Microsoft Windows Server® 2016


Windows client/workstations

Client/workstation operating systems

End date for support

Microsoft Windows® 11-

Microsoft Windows® 10



MetaDirectory is suitable for use in virtual environments. 

Network connection for read access

Display of contact data  existing network connection for LDAP consultation.

Security protocol

If user management is activated and access is via domain authentication, for example from ProCall, NTLM must be activated in the domain.

Supported web browsers

html5-compatible web browser: Current versions of:

  • Apple Safari
  • Google Chrome™ 
  • Microsoft® Edge
  • Mozilla Firefox® 

IP telephone connection

  • via MetaDirectory Terminal Templates


  • Licenses for MetaDirectory 6 Enterprise
  • Online licensing  (license management via UCConnect)

Internet connection and port sharing

MetaDirectory 6 Enterprise requires a permanent and stable internet connection to estos UCConnect.

See Release ports for estos products – which network interfaces are used?

Connection to UCConnect Portal: MetaDirectory



Source portall
Target port:443

Hardware recommendation for system expansion (Minimum)


  • CPU: 2 Core, 2 GHz
  • RAM: 2 GB
  • Hard disk: 2 GB

estos guidelines for the support of third-party products – interoperability information applies.