WebWindow about: commands and Java script equivalent list.
If you have Internet Explorer 9 or a later version installed then some about: commands will not work in frames and/or iFrames, unless you are in IE 7 mode.
WebWindow supports extra Javascript code from version 3.18.0045, but not in frames, iFrames and sub-frames.
WebWindow supports extra Javascript code in frames and iFrames from version 3.20.0047, unless ww_extraJS_inFrames is disabled in the options window.

You should check if the extra Javascript code works in a frame/iFrame first and if it fails then try to load the about: command in the frame. 
<SCRIPT LANGUAGE="JavaScript">
<!--
  try {
    var CanRunJS = ww_extraJS_inFrames;
  }
  catch(err) {var CanRunJS = false;}
  if(CanRunJS){
    // this.document.write(ww_name+"<BR>\n");
    // or
    this.document.write(<IFRAME SRC="HTMLFrameWithWWScript.htm" NAME="Browser name" WIDTH="146" HEIGHT="24" MarginWidth="4" Scrolling="NO">");
    this.document.write("IFrames not supported with this browser. Please upgrade.<BR>");
    this.document.write("</IFRAME>\n");
  } else {
    this.document.write(<IFRAME SRC="about:BrowserName" NAME="Browser name" WIDTH="146" HEIGHT="24" MarginWidth="4" Scrolling="NO">");
    this.document.write("IFrames not supported with this browser. Please upgrade.<BR>");
    this.document.write("</IFRAME>\n");
  }
// -->
<SCRIPT>
about:Computer Screen fonts demoWebWindow extra Javascript demo.
    The following example will only work if ...
  • You are using the WebWindow browser.
    (Version 2.11.0038 or later)
  • Your top IE mode is IE 8 or earlier.
  • Or your top IE mode is IE 9 or later and you are viewing the page in IE 7 mode.

Code:
<IFRAME SRC="about:Computer Screen fonts" NAME="NameOfFrame></IFRAME>
    The following example will only work if ...
  • You are using the WebWindow browser.
    (Version 3.20.0047 or later)
  • You have Internet Explorer 9 or later installed.
  • Your WebWindow privacy setting will not disable the code.
  • You have not blocked WebWindow extra script for the page or frame.
Code:
<ww_Read:ScreenFonts>
<SCRIPT LANGUAGE="JavaScript">
<!--
  try {
    var temp_WW_Version = ww_version;
  }
  catch(err){
    var temp_WW_Version = 0;
  }
  try {
    if(temp_WW_Version>"3.20"){
      if(ww_JS_privacyLevel>=1){
        ww_ScreenFontList = ww_ScreenFontList.sort();
        for(L=0; L<ww_ScreenFontList.length; L=L+1){
            this.document.write("<FONT FACE=\""+ww_ScreenFontList[L]+"\">\n");
            this.document.write(ww_ScreenFontList[L]+"<BR>\n");
            this.document.write("</FONT>\n");
        }
      }
    }
  }
  catch(err){
    this.document.write("Error; "+err+"<BR>\n");
  }
// -->
</SCRIPT>

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