You have successfully downloaded the V6 installation file which looks like: ‘qnet6-setup-base-mssql-x64-v6.x.x.exe’. If you double click the installer file it will start to install the Q-net Pro 6.x.x. or the currentversion.It is recommended to disable the UAC (User Access Control) on the PC before installing the application.Also you will need to make sure that the port numbers are enabled on the firewall: