Handy utility for power users!
Windows 7 ISOs (and DVDs) are single-version. This means that with a Home Premium ISO, you can only install the Home Premium version of Windows 7. Same with Ultimate, Starter and all the others.
Annoying!
Note: With Vista you could pick and choose the edition you wanted during install time (but you could only activate it if you had the appropriate product key).
Enter the Windows 7 Edition Switcher. Basically, this automatically patches the appropriate file inside the ISO file. No having to unpack the ISO, no mess, no fuss!
Nice!
