eMMC disk in WinXP 32/64-bit

[reboot12]

I have a Dell Wyse 5070 test machine with two disks - eMMC 16 GB and M2 SATA 128 GB

I installed on M2 WinXP 64-bit in pure UEFI and the OS works well. I have ported eMMC drivers but the system does not see eMMC disk both on system drivers and on those ported. There is only an SD controller device in the Unknown section in the Device Manager:

I added HW ID PCI\VEN_8086&DEV_31CC controller to the sdbus.inf file but nothing helps.

eMMC_xp64.zip

Installation of the KB934428 update does not help either.

P.S. Same eMMC disk works OK in Win10:

Edited July 21 by reboot12

[reboot12]

I found information that for Windows 7 to support the eMMC disk you need to update the storport.sys file - Windows6.1-KB2732471-v2-x64.msu
https://www.sevenforums.com/drivers/429158-how-do-i-run-windows-7-emmc-laptop-post3528065.html
https://www.sevenforums.com/drivers/429158-how-do-i-run-windows-7-emmc-laptop-post3528072.html

https://www.betaarchive.com/forum/viewtopic.php?p=480427#p480427

KB2732471-v2 update storport.sys is 6.1.7601.17956

I use WinXP x64 AHCI, NVMe ported drivers from @George King and storport.sys 6.1.7601.25735. If the version is newer, it means that it contains eMMC fix from 17956 ?

Edited 1 hour ago by reboot12