VIA Hyperion 4 in 1 driver includes four system drivers to improve the performance and maintain the stability of systems using VIA chipsets. These four drivers are: VIA Registry (INF) Driver, VIA AGP VxD driver, VIA ATAPI Vendor Support Driver, and VIA PCI IRQ Miniport Driver. The driver package will automatically detect your operating system and provide the necessary options by default. For Windows NT users, VIA IDE Bus Mastering driver is the only driver to be installed to your system. VIA Registry (INF) Driver is to be installed under Windows. The driver will enable VIA Power Management Controller. VIA AGP VxD Driver is to be installed if you are using an AGP VGA card.
VIAGART.VXD will provide service routines to your VGA driver and interface directly to hardware, providing fast graphical access. VIA ATAPI Vendor Support Driver enhances compatibility with IDE devices. VIA PCI IRQ Miniport Driver installs under Windows 98 only. It will improve the PCI IRQ routing sequence. New in version 4.51: Fixed the issue of the Delayed Write Failed only for special condition.