Get version of juce ActiveX Browser Plugin


How would I detect the version of my Juce ActiveX Browser Plugin via Javascript, without actually loading it?
The way to do it with for instance the shockwave plugin is:

var control = null;

    control = new ActiveXObject('SWCtl.SWCtl');
catch (e)
if (control)
    version = control.ShockwaveVersion('').split('r'); //this obviously doesn't work for a Juce Plugin...
    version = parseFloat(version[0]);

I can successfully initialize my plugin with new ActiveXObject(myProgID), but I don’t know how to get the version info from JuceBrowserPlugin_Version or JuceBrowserPlugin_WinVersion.

Any ideas? Thanks