Model: Astra 2100U
Operating System: Windows 2000 Pro (Note: might work with other versions of this os.)
Should you experience any problems (Error 31) under Windows 2000, please download this file pv8630.sys and replace the ones in the folders "WinNT\system32" and "WinNT\system". www.umaxfirstaid.de/ftp/pv8630.zip Otherwise you can purchase the driver from UMAX for $28.00. I found this in an article in one of my magazines where the writer put in two or three websites overseas to get this and berated UMAX for unprofessional conduct for trying to sell it to US citizens.