on Microsoft's Windows Media DRM, which led to concerns about cross-platform availability, as this technology is available only for Windows XP. However, some users have managed to get it working using compatibility options in Microsoft's Windows Vista. The BBC emphasises that it "has a commitment to platform neutrality and a remit to make its content as widely available as possible", and that while the initial trial used a Microsoft-based technology, they are constantly looking for new technologies which would enable them to relax the restriction: Ashley Highfield, then BBC's director of Future Media and Technology, explained that "we have always started with the platform that reaches the most people and then rolled it out from there". They also point out that not all of the content delivered through the iPlayer will be subject to DRM – live streaming content, for instance, may not need the same level of control, presumably implying that players for OS X and Linux systems could be developed with a restricted range of content. However, a project was started to enable the iPlayer to work with other platforms via the Wine project. Streaming via the BBC iPlayer website is now available in all browsers supporting Adobe Flash. Also, iPlayer Desktop, which allows downloading programmes for later offline viewing, is available for Windows, macOS and Linux. On 14 August 2007, the Free Software Foundation staged a demonstration outside BBC Television Centre. The FSF's Peter T. Brown criticised the BBC for what he claimed was a break from previous tradition: the insistence that, for the first time, BBC viewers would be forced to use proprietary technology to watch BBC programmes. On 18 February 2010, the BBC updated iPlayer with an SWF verification layer which attempts to close the door on open source implementations of Real Time Messaging Protocol (RTMP) streaming. The attempt was unsuccessful, with most existing open source applications remaining capable of playing or downloading RTMP content from the iPlayer. Overseas availability BBC TV productions are paid for by the UK television licence fee and rights agreements with third parties. Thus, all BBC iPlayer TV programmes are accessible from IP addresses allocated to the UK only, . However, most radio programmes can be accessed globally, with the exception of a few programmes, mainly sports broadcasts, that are affected by rights issues. An international version of the iPlayer was launched on 28 July 2011 in eleven western European