First, un-install any previous version of BASINS 4
download the installer
change the extension to .exe
run as Administrator to install.
Installer for GenScn and WDMUtil (32 Megabytes)
This software was included in previous versions of BASINS but is now packaged separately.
This package includes the previous version of WinHSPF. The new BASINS package contains a new WinHSPF, version 3.0.