To install, edit the SYSTEM.INI located in C:\Windows\System

Under the [386Enh] section, add the lines "Device=HstMouse.386" and "Device=SyncTime.386".

Under the [boot] section, add the lines "HST.MOUSE.DRV=MOUSE.DRV" and "MOUSE.DRV=HSTMOUSE.DRV". 


Copy the three files (HstMouse.386, HstMouse.drv, and SyncTime.386) to the C:\Windows\System directory.