Microsoft Office 2011 includes more robust enterprise support and greater feature parity with the Windows edition. Its interface is now more similar to Office 2007 and 2010 for Windows, with the addition of the Ribbon. Support for Visual Basic for Applications macros has returned after having been dropped in Office 2008.Purchasing the Home Premium version of Office for Mac will not allow telephone support automatically to query any problems with the VBA interface. There are however, apparently, according to Microsoft Helpdesk, some third party applications that can address problems with the VBA interface with Office for Mac.[citation needed] In addition, Office 2011 supports online collaboration tools such as OneDrive and Office Web Apps, allowing Mac and Windows users to simultaneously edit documents over the web. It also includes limited support for Apple's high-density Retina Displays, allowing the display of sharp text and images, although most icons within applications themselves are not optimized for this.