File unzips to Disk1 and Disk2 - these are the driver floppies originally supplied with the scanner. Disk1 contains bw4830pp.exe - run this and you will be prompted for the second disk when the first has finished.
The following files are found inside the driver download file.
|Disk1/Bw4830pp.EXE||1.5 MB||11 Mar 1998|
|Disk2/Bw4830pp.W02||921.7 KB||11 Mar 1998|