We have been successfully running Vantage 6.1 on Windows 7, then Windows 10 machines without a hitch until now. A couple of machines decided that it was time to upgrade from Win 10 Ver 17.09 to Ver 18.03 and they now give the following error when attempting to start Vantage:
Unable to create socket. errno=0. (781)
Re installation does not appear to resolve the issue, neither does shutting down the firewall and antivirus.
It is not an immediate showstopper as we have blocked Windows updates for the moment and plan to cut across to V10 in 5 weeks time but we will require access to V6.1 long into the future for historical reference. Any pointers on resolving this error will be much appreciated.