MSI have released their own version of Nvidia's Detonator Drivers 28.90 for Windows based systems.

Note: NOT Recommended to be used for VIA KT133/ KT266/ KT266A/ KM266 based motherboard! Download MSI Nvidia Detonator 28.90 Drivers For Windows 9x/ME 4.71MB

Download MSI Nvidia Detonator 28.90 Drivers For Windows 2K/XP 4.93MB

Download MSI Nvidia Detonator 28.90 Drivers For Windows NT 4.0 4.23MB