Vues :

Behaviour:
In Windows Explorer Client, the settings cannot be opened any more. Following error message occurs: 
Key is with the defined status not valid.
The same error occurs when refreshing the Windows Explorer Client settings.

Solution:
Delete the settings file of the WEC in the appdata folder of the Windows User.
C:\Users\USERNAME\AppData\Local\DocuWare\WEC
This file is recreated after a re-start of the Windows Explorer Client.