Microcode Update Device driver update

[Ascii2]

I wish to update the Microcode Update Device driver (update.sys) on Windows 2000 family operating systems.

The "update.sys" file contains microcode that is uploaded to Intel processors on performance of function of the update.sys driver.

The newest update.sys file I have found comes with Windows XP Service Pack 3 (may be acquired http://www.microsoft.com/downloads/info.as...SP3-x86-ENU.exe ).

I have attached images to this thread: One showing "Microcode Update Device" in device manager, and the other a search of the Windows XP Service Pack 3 files for "update.sys" contained within the files.

For the search for the text "update.sys" of the Windows XP Service Pack 3 files, I had decompressed the compressed files to the search's root directory ("xp_sp3") and extracted the cabbed files to other directories. No cabbed files had references to update.sys. The only reference to update.sys from the expanded (decompressed) files was for the "wuapi.dl_" file.

The file "update.sy_" is the compressed update.sys file and is located in the i386 directory.

I have the driver file from Windows XP Service Pack 3, update.sys, containing the newer microcode updates, but I do not have the a Setup Information file (*.inf file) for the installation of the driver.

I request assistance for this matter to prepare a driver update.

Any help in this matter is appreciated.

EDIT: I would attach the "update.sys" file to this thread, but it appears the file is larger than the limitation by the forum (even in compressed form).

Edited June 15, 2008 by Ascii2

[allen2]

I don't think this can work easily:

- replacing a 2k .dll with an XP .dll shouldn't work as the dll is dynamically linked. It is almost sure that update.sys is linked against other dll and those would be needed also......

- sfc doesn't allow the chenge of only a few dll like this. You'll need to disable it.

[Ascii2]

- replacing a 2k .dll with an XP .dll shouldn't work as the dll is dynamically linked. It is almost sure that update.sys is linked against other dll and those would be needed also......

- sfc doesn't allow the chenge of only a few dll like this. You'll need to disable it.

I thought that the Windows 2000 System File Checker (SFC) may overwrite a simply copied update.sys file to %SystemRoot%\system32\drivers directory (it does). To get aroud that I thaought that an *.inf file may be needed to install it. Please advise that this should not work if this should not work.

From the thread "Microcode updates - UPDATE.SYS" ( http://www.msfn.org/board/Microcode-update...SYS-t44388.html ), MDGx made patches that replace UPDATE.SYS on Windows 98SE/ME.

Microsoft Corporation also release updates that patch the Microcode Update Device driver for Windows XP/2003/Vista (32-bit and 64-bit) ( http://support.microsoft.com/kb/936357 ).

Apparently, it should be possible to install updates for drivers protected by SFC.