@DiaAzul When I try to use your approach with the ampersand &, I get notified that the symbol & cannot be syntactically processed.
If I move my whole KNIME package to a folder where there are no spaces, e.g. C:\Users\username\Downloads\knime_4.6.3\knime.exe, I get notified that the execution of the application is prohibited by company policy.
(If it is somehow possible to get a KNIME workflow to run via command-line, I would like to execute this workflow. Please note that there is a Credentials Configuration node that has to be provided with a password. Is there an option to provide it either via a command-line option and/or is there a way to use an option that opens a GUI window where the password can be entered manually?)