1. You may access following link to download the later driver.
ftp://cs0712:pen0712@ftp.penpower.com.tw/cs/WinXp32.zip
ftp://cs0712:pen0712@ftp.penpower.com.tw/cs/Winxp64.zip

2. Please try to decompress the attached zip file and use copy and past this folder(WinXp32) to under C:\Windows\Temp\
Please try to decompress the attached zip file and use copy and past this folder(Winxp64) to under C:\Windows\Temp\

3. Please go“ Start ”->”computer”-> right click ”properties”

4. Please Choose ”Device Manager”.

5. Please find ”Other devices”-> at ”600 dpi USB Scanner” right click and choose ”update driver software”.

6. Please Choose ”Browse my computer for driver software”.

7. Please click ”Browse”button-> choose the path ”C:\Windows\Temp\Winxp32” (if your computer is Vista 64 , choose WinXP 64 ) -> and then click ”next”.

8. Ultra driver installation complete.

9. Please check first if the calibration is working.