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With the Command Line Argument “-c” on the DocuPerformer.exe shortcut you can redirect the .EXE to a different database (e.g. one for your testing DB and one for the productive DB).
Example:
"C:\Docu Performer\DocuPerformer\Core\Main\DocuPerformer.exe" -c "C:\Docu Performer\AppData\ConnectionData\ConnectionData_SQL_Server.xml"
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