files get corrupt and the only way to inform a host would be the chat function but that, seldom, if ever works, they would have to have their chat enabled. you'll just have to keep trying different hosts to get a good file. and its really not a good idea to try to contact a host unless they have their chat turned on.


Some AV's do have firewalls, you'll have to adjust those settings, and if you have SP2 you will also have to adjust those settings to allow other users to upload from you. More than one firewall running and you will be blocking users from downloading from you.