How an user can also start this program?
f.e. from a DOS with following statement:
c:\dev6l\bin\ifrun60.exe e:\erp_v9\bin\orama orama_logon/orama_logon@DBSFI
or like
"c:\dev6l\bin\ifrun60.exe" "e:\erp_v9\bin\orama" "orama_logon/orama_logon@DBSFI"

Is "orama_logon/" a parameter specification?
YES
try also from kixtart

code:

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 SHELL '%comspec% /c start /w "c:\dev6l\bin\ifrun60.exe" "e:\erp_v9\bin\orama" "orama_logon/orama_logon@DBSFI" '

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Verify also the correctness of "/" symbol in your call.
On windows environment you are running it. Some versions can handle
in a correct way f.e. "My Documents" without the usage of quotations.
greetings.