Highscreen PP5420 works well with HTC Dream ADB driver.

But for some reasons you may need to install all other Unknown Highscreen devices first.
Just and to android_usb.inf a couple lines:

[Google.NTx86]
; PP5420
%USB\VID_18D1&PID_D00D&MI_00.DeviceDescRelease%=androidusb.Dev, USB\VID_18D1&PID_D00D&MI_00
%USB\VID_18D1&PID_D00D&MI_01.DeviceDescRelease%=androidusb.Dev, USB\VID_18D1&PID_D00D&MI_01
%USB\VID_18D1&PID_D00D&MI_02.DeviceDescRelease%=androidusb.Dev, USB\VID_18D1&PID_D00D&MI_02
%USB\VID_18D1&PID_D00D&MI_03.DeviceDescRelease%=androidusb.Dev, USB\VID_18D1&PID_D00D&MI_03
%USB\VID_18D1&PID_D00D&MI_04.DeviceDescRelease%=androidusb.Dev, USB\VID_18D1&PID_D00D&MI_04

[Strings]
; PP5420
USB\VID_18D1&PID_D00D&MI_00.DeviceDescRelease=”PP5420 0″
USB\VID_18D1&PID_D00D&MI_01.DeviceDescRelease=”PP5420 1″
USB\VID_18D1&PID_D00D&MI_02.DeviceDescRelease=”PP5420 2″
USB\VID_18D1&PID_D00D&MI_03.DeviceDescRelease=”PP5420 3″
USB\VID_18D1&PID_D00D&MI_04.DeviceDescRelease=”PP5420 4″

highscreen_drivers