Unlike Windows Vista, Windows 7 is no longer "One Disc To Rule Them All", which presents challenges to people who are downloading multiple editions from their MSDN or TechNet subscriptions, and for people who want to backup and archive their ISOs, because instead of just two disc images--one each for 32-bit and 64-bit--there are now eight different images.
This creates an unnecessary strain on bandwidth when downloading, wastes space when archiving, and wastes time in general.
Fortunately, the images are all extremely similar, differing only in a handful of bytes, so it is possible to create a binary patch that converts an image of one type into an image of another type, and that is what this package does.
The patches and patcher in this package can be used to convert any 32-bit image
into another 32-bit image and any 64-bit image into another 64-bit image.
For example, if you downloaded the 32-bit Ultimate ISO disc image from MSDN and you also want a 32-bit Professional image, instead of spending another 2.3 GB of bandwidth, you can make a copy of your Ultimate image and then patch that into a Professional ISO disc image; the result should be exactly identical to what you would have gotten had you downloaded the ISO image separately.
Give Windows 7 ISO Image Edition Switcher a try to see just how useful it can be for changing Windows 7 editions without having to download huge ISO images!