VIA Hyperion Pro drivers are suitable for ANY VIA chipset - but they are particularly recommended for KT4## series, P4X4## series and newer, for example:
K7 chipsets: KT400, KT400A, KT600, KT880, KM400, KN400
K8 chipsets: K8T800, K8T800Pro, K8M800, K8N800, K8T890, K8T890Pro
P4 chipsets: P4X400, P4X400A, PT800, PT880, PM800, PM880, PT880Pro, PT894

The new package includes:

INF Driver V2.70A
AGP Driver V4.50D
IDE Filter Driver V1.20D
RAID Driver V5.20A,
Raid Tools V5.26

Operating systems supported:

Windows XP Family (x86, x64)
Windows Server 2003 Family (x86, x64)
Windows 2000, Windows 9x , Windows NT4

What's changed:

1 : Updated VIA Raid driver to 5.20A .
2 : Updated VIA INF driver to 2.70A
3 : Updated AGP driver to 4.50D

Known limitations:

The VT8251 South Bridge SATA/Raid/AHCI functions are not ready under Windows 9x. It is only supported under the following platforms...
Windows NT 32-bits Platforms : Windows 2000 ,Windows XP ,Windows Server 2003
Windows NT x64-bits Platform : Windows XP-x64 ,Windows Server 2003 SP1-x64