OK, some will have read my dramas re disqualification and server disconnection at hole 2 and such matters.
At times I thought I had solved the issue, Mississippi gave me some pointers re Windows Firewall, but sadly, I found that, despite tweaking of Inbound and Outbound 'Rules', I still suffered the dreaded 999 usually after the 2nd hole, but sometimes much later. I did have a little success re-installing after every round but usually only for one round. I even tried to remove all references to Links 2003 in the registry, but to no avail. Incidentally, there were 2 that I could not remove, which might explain why, after uninstalling the game, when I re-installed my old game name was still there!
Well, finally, I turned Windows Firewall OFF! You see, I DO have TREND, but I considered that the 'extra' protection that Windows 10 offered was perhaps worthwhile.
As soon as I had turned it off, BINGO! I have played round after round and a few tournaments totally without issue. So back to where I was 10 years ago, though not half as skilled!
So for others running Windows 10 and who may be having probs. get a separate virus etc program, and ditch Windows Defender! It works!
Eddie B (Aka 'Whisky')