Why Windows 7 Thows Exception when infinity is passed to Graphics.ScaleTransform

In XP the same infinity is passed as one of parameter for Graphics.ScaleTransform exception is not thrown but in windows 7 exception is thrown why is it like this?what is reason of not throwing exception in xp and throwing exception in windows 7

It's because of the Windows Imaging Component ( WIC ) which was introduced in Windows 7. Have a look here :

http://www.google.co.uk/search?q=wic...;2B&hl=en&sa=2