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With Vijeo Historian v4.40 and when license key plugged into system Historian shows the error "Key Status as Expired" with " Expiry Date as 12/301899 ". How can we resolve this error.

To remove this license key expiry error , you need to install this attached hotfix HF44058953 and then need to update the latest Sentinal License key driver and CiUsafe driver from the below download link : 

CiUSafe & Key Drivers - Latest Version (top right hand side) 
Download the latest version of CiUSafe.ZIP
Download the latest Sentinel Key Drivers 
Now run the exe files and restart the historian services. 
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