Requirements

For the operation of the estos EWS Calendar Replicator the following requirements must be fulfilled:

• Operating system
  The service can be installed on the following operating systems:
  
  • Windows® 8.1
  • Windows® 10
  • Windows® 11
  • Windows Server® 2012
  • Windows Server® 2012 R2
  • Windows Server® 2016
  • Windows Server® 2019
  • Windows Server® 2022
  
  
• .Net Framework 4.0 has to be installed.
  For execution, estos EWS Calendar Replicator requires the .Net Framework 4.0, Full Profile. The Client Profile of .Net 4.0 is insufficient.
  This version of the framework can be downloaded from Microsoft®.
  
  
• UCServer must be setup using Active Directory® User Administration.
  UCServer's User Administration system must be setup using Active Directory® in order to ensure that the association between the users and mailboxes on the Exchange Server are unique.
  
  
• Exchange Web Services must have been activated in Exchange Server.
  Exchange Server 2007 SP1, Exchange 2010, Exchange 2010 SP1, Exchange 2013 or later.
  
  estos EWS Calendar Replicator requires the interface services provided by Exchange Web Services for access to Exchange Server.
  Any web browser can be used to check if the interface is active. Simply open the browser and enter the following line (remember to modify the computer name properly):
  https://myexchange.domain.com/ews/Services.wsdl
  After a login request, an XML document should be displayed. The Exchange Web Services should be activated then.
  
  
• The Exchanger Server certificate must be setup.
  In order to run secure communications over SSL, the Exchange Server certificate must have been installed on the computer, where the estos EWS Calendar Replicator will run.
  
  
• Domain user account with reading rights on Active Directory® and Exchange must exist.
  In order to read the neccessary data from the listed services, a user account must exist which has read access on the following data:

  Service	Required Rights
  Active Directory®	Read rights for User Objects. The ProxyAddress field will be read.
  Exchange Server	Login access on Exchange Server and read access for other users' free-busy data.

  The authorizations for the free-busy data normally depend on the permissions of the individual users (regarding this, see the Exchange Server Connection section).
  
  

Note that by operating the estos EWS Calendar Replicator, an additional burden for the Exchange Server (Reading calendar information) as well as for the estos UCServer (Writing of calendar information) is created. This burden depends on the number of users and their online status.

Default is 15 minutes. A replication interval less than 5 minutes for 200 users is not recommended.