I want to use DOA's oracle monitor to monitor the sql in my application,but
every time when I open the application
the oralce monitor says 'this application
can't be monitor by this version of the
oralce monitor'
Could you tell me what's the matter?
(unit oralcemonitor has already been included in my application).

You are probably using the trial version of the Oracle Monitor and the registered version of the Direct Oracle Access components. You should download and install the registered version from the Oracle Monitor.

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Marco Kalter
Allround Automations