At the moment, the only way to disable QSW is through providing system property

(quoting QuickStartWizard.java)
==========================================================================
    static final String QSW_OFF_PROPERTY = "com.sun.javatest.qswDisabled";
    
    private static final boolean qswDisabled = Boolean.parseBoolean
            (System.getProperty(QSW_OFF_PROPERTY));
===========================================================================

We need an ability to disable QSW persistently when
using the command line:

 - java -jar <TCK>/lib/javatest.jar

where <TCK> is TCK binary installation folder.

We need a way to disable QSW similar to the one for Tools:
there should be a settings file under (in our case)

<TCK>\lib\jtExt folder with the setting used to determine
if QSW is disabled.

At the moment, all TCK users should warned that using QSW
is disallowed.