Yes, Zelio Soft 2 V4.5 is compatible with Windows 7 64 bit with one exception;  when communicating between the PC/Laptop and the Zelio Logic Relay, and using the USB cable SR2USB01 with Windows 7 64 bit version.

However, we have solutions to overcome this. If using SR2USB01 and Windows 7 64 bit, use one of the following options:

1. Download the driver for the cable SR2USB01 (for V4.5 running on Windows 7 64bit). Refer to the following FAQ, which explains how to download and install Windows 7 64 bit driver for this cable: FA163642

2. Communication between the PC/Laptop and the Zelio Logic Relay using a combination of 2 cables SR2CBL01 (Zelio Relay connector and terminates with serial connector) + SR2CBL06 (serial to USB converter. The included CD will provide drivers for this cable)

3. Use the SR2CBL01 cable alone, if your computer/laptop has a serial port available.