Please download the latest software package from the downloads page: velleman.eu/support/download … 1000&type=
“PCLAB2000SE software package Version 4.05 (Released 15/10/2012)”
This can be installed on 64-bit system too.
You have to install the driver manually from the Device Manager.
Here you can download the detailed step-by-step instructions to install the driver in Windows 7: box.com/s/vh9olqyx3idhhxn8ujwm
The instructions are for other Velleman oscilloscope but the installation procedure is applicable for the PCSU1000 too.