It seems there is no way to let it work with M$ Windows os...Linux works great maybe due to its ability to load the k8 driver microcode into the cpu at boot time.
the source of the problem is not the microcode. which OS are you using? which service pack? what's the exact problem when using Windows? Windows also includes microcode updates and it loads them on startup.
AMD do not provide any similar tool to the intel' checkup6 one able to update the bios cpu microcode
the intel tool works ONLY with bioses that have an intel compatible API to flash the microcode into the bios without altering the rest of the contents. those bioses are rare..i only know of some Fujitsu-Siemens and Intel bioses to support this, the vast majority of bioses doesn't have this API.
a microcode update only fixes cpu errors that occur in very very rare cases under ultra rare circumstances. loading Windows surely is not a rare case in terms of microcode updates.
If you email me include [WIMSBIOS] in the subject.