The UMAX usc 5800 scanner driver or UMAX Astra 5800 scanner driver is a version of the UMAX scanner which was sold in India and very difficult to find. This mainly as the scanner was not sold everywhere. You can now download the driver for the UMAX usc 5800 scanner driver. See the UMAX Astra 5800 scanner driver down below for downloading.
The UMAX Scanner Astra 4000U Vista Scan or vistascan driver listed below is version 3.81 of the scanner driver. This Vista Scan version supports only the Astra 4000U, under Windows 98/SE/Me/2000/XP. Note the operating systems which it will operate on. The hardware is rather old so finding a new driver is going to be tough.