"In a note on Microsoft's open-source Web site Port 25, from Microsoft's Peter Galli, a former colleague of mine as it happens, said that "After looking at the code in question, we are now able to confirm (that GPL code from the ImageMaster open-source program had been put in Microsoft's proprietary program) ... although it was not intentional on our part."
"The Windows 7 USB/DVD Download Tool is meant to help netbook users upgrade from XP to Windows 7. It makes it possible to take a Windows 7 DVD image and place it on a USB stick. Since many netbooks don't have a built-in DVD drive this was an essential program for users who wanted to install Windows 7 on their XP desktops-not an easy job on any PC. ImageMaster is a general-purpose tool for moving DVD images to USB sticks."
