vbraga writes: The German government has confirmed that the German Foreign Office is to switch back to Windows desktop systems. The Foreign Office started migrating its servers to Linux in 2001 and since 2005 has also used open source software such as Firefox, Thunderbird and OpenOffice on its desktop systems. The government's response to the SPD's question states that, although open source has demonstrated its worth, particularly on servers, the cost of adapting and extending it, for example in writing printer and scanner drivers, and of training, have proved greater than anticipated. The extent to which the potential savings trumpeted in 2007 have proved realisable has, according to the government, been limited – though it declines to give any actual figures. Users have, it claims, also complained of missing functionality, a lack of usability and poor interoperability.