Export to PDF or HTML gives internal error

Document ID : KB000092575
Last Modified Date : 20/04/2018
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Question:
When trying to export any report (simple or free form) to PDF or HTML we receive the message "An internal error has occurred".
Answer:
The error may be caused by the system failing to make a call to the relevant export library. This can be fixed by the following commands:

cd %OG_HOME%\bin
regfiles.bat 3

The OS finds them again from the updated registry information.