Simply download the installer for Wecon PLC Editor and use the right click on the setup package and choose Run as Administrator. This will give enough permissions to install the necessary files on the system partition. However, to properly install the drivers, you'll have to disable the Driver Enforcement Policy.
As for the question, based on the information provided, yes, you can upload from the Wecon PLC to a PC using RS485.
is their a Mac OS X version ?
The answer to the question is yes, Wecon PLC Editor will run on Windows 7. There is not a Mac OS X version available.
Simply download the installer for Wecon PLC Editor and use the right click on the setup package and choose Run as Administrator. This will give enough permissions to install the necessary files on the system partition. However, to properly install the drivers, you'll have to disable the Driver Enforcement Policy.
After this procedure, restart the installer of Wecon PLC Editor and check the driver installation as well.