I took this driver from the original manufacturer cd. I hope this help someone in someway.
The following files are found inside the driver download file.
|SETUPLIB.DLL||165.9 KB||4 Jan 1999|
|OEMROM.BIN||32.8 KB||30 Apr 1999|
|SIS620.CAT||2 bytes||31 Jul 1998|
|DD620.DLL||10.3 KB||10 May 1999|
|SIS620V.VXD||30.1 KB||14 May 1999|
|DD620_32.DLL||125.4 KB||10 May 1999|
|SIS620V.INF||12.2 KB||14 May 1999|
|SIS620V.DRV||89.5 KB||14 May 1999|