What’s the difference between an Installer builder and a Patch builder?

[Adam]

Question:

What’s the difference between an Installer builder and a Patch builder?

Answer:

Installer builders (such as Indigo Rose’s Setup Factory) have a different purpose than patch builders (like Visual Patch). A software installer is used to setup and configure a full software application on a computer system. Once it’s installed and working, the installation program’s job is done. In a perfect and unchanging world, that would be the end of the story. However, we all know that change is a constant. Software and data need to be updated periodically (bug fixes, features etc), but such changes seldom require the complete overhaul of a program. You need a method that synchronizes the data “in-the-field” with your current release.

Visual Patch greatly simplifies product maintenance by taking care of this for you. Whenever you have a new version ready, Visual Patch figures out what files need to be added, changed or replaced to bring any older version of your software up to date.

Visual Patch saves you time by making the design process as easy as possible. Visual Patch is also incredibly accurate; by automating much of the decision process, it eliminates opportunities for human error compared to developing patches "by hand" with other methods. Additionally, with the addition of binary differencing, Visual Patch can actually determine the areas of difference within a file and only distribute those particular changes – something that is impossible to do without sophisticated algorithms.