Previous versions of Windows made burning ISO files a chore. You either had to purchase a third party app that could cost over $100 that was filled with bloatware you didn’t need, or you could try and find a freeware utility that might or might not work and more often than not produced more bad discs than good ones.
With Windows 7 Microsoft has made it easier to keep your digital life in order by including a built-in ISO burner that lets you easily right click on an ISO file and burn it to CD or DVD. Now only if they would let us view the contents of an ISO file without having to burn it first!
Windows 7 in 77 Seconds – Burning ISO Images