secuencias de comandos de Photoshop - ruta como variable

esto funciona bien, abre el pdf en la carpeta

#target photoshop

app.bringToFront();
var path = 'C:/PhotoshopPortable/' 
// A hard coded path to a directory 'mac style'
var processFolder = Folder('C:/PhotoshopPortable/')
// Use folder object get files function with mask 'a reg ex'
var fileList = processFolder.getFiles(/\.(pdf)$/i);
// Loop through files

for (var i = 0; i < fileList.length; i++) {
     // Only process the returned file objects
     // The filter 'should' have missed out any folder objects 
     if (fileList[i] instanceof File && fileList[i].hidden == false) {
        // get a reference to the new document
        var docRef = open(fileList[i])
        // save and close
        saveJPEG(new File('C:/PhotoshopPortable/' + app.activeDocument.name + ".jpg"), 12)
        app.activeDocument.close();
     }
}

function saveJPEG(saveFile, jpegQuality){
    var doc = activeDocument;
    if (doc.bitsPerChannel != BitsPerChannelType.EIGHT) doc.bitsPerChannel = BitsPerChannelType.EIGHT;
    jpgSaveOptions = new JPEGSaveOptions();
    jpgSaveOptions.embedColorProfile = true;
    jpgSaveOptions.formatOptions = FormatOptions.STANDARDBASELINE;
    jpgSaveOptions.matte = MatteType.NONE;
    jpgSaveOptions.quality = jpegQuality; 
    activeDocument.saveAs(saveFile, jpgSaveOptions, true,Extension.LOWERCASE);
}  

pero esto no:

var path = 'C:/PhotoshopPortable/'
var processFolder = Folder(path)

abre un archivo desconocido con el texto de la licencia (Mozilla ???).

no necesito el cuadro de diálogo de la carpeta, solo quiero tener la ruta de trabajo en una variable.