Error which says that ‘Scanner is not able to open’.

I have purchased a Cherry GmBH Fingerprint Scanner, Smart Card Reading Keyboard. But the installation CD does not contain the option to install with Windows Vista and Windows 7.
I have tried with the installation CD, but there was no use. Only the keyboard is working properly and the scanner is not working.
The installation ended with an error message which says that ‘Update driver error’. I have tried by updating all drivers, but there was no change in the result.
When I am trying to register the fingerprint it also gives an error which says that ‘Scanner is not able to open’. I have searched in the forums but nothing found useful. Please help me to solve this problem. I will thankful for all help and support.
