BIOS Patcher is a kind of software that can find and fix errors in your system BIOS (only AWARD BIOS for now) and also it can add or open new features, i.e. some features that your BIOS has but they are closed by manufacturer of your motherboard.
WHAT DOES IT MAKE
BIOS Patcher scans rom file. If it finds any known errors it fixes the errors. If it finds any closed features it opens it. Also if it is started with any keys for add new features than it should add it.
HOW DOES IT WORK
As we know AWARD BIOS consists of several LHA-packed parts. For scan patcher extracts parts that it needs into RAM and looks for parts of code that it knows and that contains errors. If it finds something looks like an error it should check this error by several other signals and if all is allright patcher will signalize about it. If patcher has some mishmash about this error it shouldnt fix it.
WHY DOES IT WORK
It is rather big question. Ill try to tell about shortly. Programmers who writes AWARD Bios sells it to motherboard manufacturers, who can change and/or add new features. It seems clear that nobody will write BIOS from the very beginning (Simple not every company has their own programmers and money for them.
Thats why BIOSes of most motherboards looks like others. That is why all that motherboards has seldom updates of their BIOSes. And thats why most of them has identical errors and thats why patcher works more effective with this BIOSes.
'Adult' companies make changes (a lot and serious). Patcher can distinguish brand BIOSes such as Gigabyte or Asus.
I havent information but it seems to me that Asus has rights to AWARD BIOSes and it writes their own BIOSes (with AWARD logo). It means that Asus has their own standarts and often has no any connection with 'normal' AWARD BIOSes. So that is why such tools as cbrom or modbin cant work with Asus BIOSes. And also I want to stress that Asus has no problem with programmers and their BIOSes often seems like an art. (that is why almost a third part of patcher is a database of all features of Asus BIOSes).
And as an answer to this question - patcher works because of most general roots of all Award BIOSes (a great part of them hasnt changed since 1990).
WHAT IS CHANCE OF FAILURE
Possibility of failure presents every time. But as I told above for identification of errors patcher uses many signals and error cant be because of work of patcher.

The license of this software is Freeware, you can free download and free use this system utility software.