webaccesslib not working in Bridge CC 2017

My script, which had been working in previous CS and CC versions, is not working in CC 2017.

In the snippet below, var webLib2 = new ExternalObject("lib:" + pathToLib2 ); results in an I/O error.

Do I need to change my code or is webaccesslib no longer available in CC 2017?

if ( !ExternalObject.webaccesslib ){

    if( Folder.fs == "Windows" ){

        var pathToLib2 = Folder.startup.fsName + "\\webaccesslib.dll";

        }

    else{

        var pathToLib2 = Folder.startup.fsName + "/webaccesslib.bundle";

        }

    var libfile2 = new File( pathToLib2 );

    var webLib2 = new ExternalObject("lib:" + pathToLib2 );

   }