rem: file.appendRelativePath(this.filename); 
add: var filename = this.filename; if (file.QueryInterface(Components.interfaces.nsILocalFileWin)) { filename = filename.replace(/\ } file.appendRelativePath(filename); 
context:     getFile: function() {        if (!this.testSuite.file) return null;        var file = FileUtils.getFile(this.testSuite.file.parent.path);        //alert(file + " " + this.filename);        file.appendRelativePath(this.filename);        return file;    },
meta: 3428	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3428/29e5a4f935299d518fa47a6cd6d807dc66026ed1/testSuite.js/buggy/src/content/testSuite.js