Question

You can configure the installer to inform the user but not cancel installation after an error is found running an action using the and the tags, as shown in the below example.

<runProgram>
    <program>${installdir}/bin/myapp</program>
    <programArguments>argument1 argument2</programArguments>
    <abortOnError>0</abortOnError>
    <showMessageOnError>1</showMessageOnError>
</runProgram>