This is a Microsoft advert for Windows, "designed to highlight that technology is supposed to help people break through barriers and overcome obstacles" (Flores, 2008).
"The 20th anniversary of the fall of the Berlin Wall has inspired many advertising campaigns. Microsoft Windows has hit the nail with its “Break Down the Walls” campaign targeted at its own software sales staff. It concealed a letter of invitation to sales promotion inside concrete which had to be broken with hammer. Sales employees could also win a trip to Berlin by joining sales promotion. The idea was to inspire them to break down walls and build up sales." (Katti, 2009)
Flores, C. (2008) Windows: Life without Walls. [online] http://windowsteamblog.com/blogs/windowsvista/archive/2008/09/18/windows-life-without-walls.aspx [03/04/2010]
Katti, M. (2009)Berlin Wall Fall Inspired Advertising Campaigns. [online] http://trendsupdates.com/berlin-wall-fall-inspired-advertising-campaigns/ [03/04/2010]