If you've ever wanted to run Windows 98 SE on your mid-2010s or newer PC with fast USB hub support, here's your chance.
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Watch On Demo video “shows many different USB devices being hotplugged to a modern 2020 ThinkPad P14s Gen 1 with only xHCI controller.”
Some of you will be wondering why a project to bring USB4 (Thunderbolt 3 and 4) to PCs running Windows 98 SE exists. Retro computing fan Meng explains on his GitHub that this project should appeal directly to users of PCs from the mid-2010s that have xHCI-only (USB 3.x) chipsets and no legacy EHCI controller. However, older OSes don’t have xHCI drivers , and that’s where xHCI98 steps in. “Without xHCI support, even keyboards, mice, and flash drives need the BIOS's legacy support, cannot be hotplugged, and devices such as Ethernet and audio do not work at all,” explains Meng, revealing his motivation. “This project fills that gap.”
Impressively, xHCI98 drives a lot more than USB storage . It replaces Windows’ own USB port and hub drivers to facilitate the connection and use of USB 1.1 and 2.0 and SuperSpeed (USB 3.x) devices and hubs, UAS (USB Attached SCSI) storage through a second driver (xhciuas.sys), and Thunderbolt 3 and USB4 docks and NVMe enclosures through a third driver (xhcicm.sys).
Meng has developed and tested xHCI98 mostly on Intel hardware, as that is what he owns. Candidly, he admits “this is a solo human's project with AI assistance , so bugs are not unexpected,” even if you do have the same hardware as the dev – a 2020 ThinkPad P14s Gen 1 (Comet Lake xHCI, no EHCI). It stands up pretty well during the plug/unplug video demo above, though the test rig used is not quite the USB cart of death .
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Reference reading
- https://www.tomshardware.com/peripherals/thunderbolt/SPONSORED_LINK_URL
- https://www.tomshardware.com/peripherals/thunderbolt/windows-98-se-users-get-a-thunderbolt-4-driver-thanks-to-ai-assistance-vibe-coded-xhci98-driver-works-in-microsoft-oses-up-to-windows-7#main
- https://www.tomshardware.com/membership
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Informational only. No financial advice. Do your own research.