i don't speak very good english, but let's go....

i don't know thi subject very good:
i build a home bank with asp encrypt codes with screnc and use objects Dundas.Mailer and Dundas.Upload and my client use a server NT4 with IIS4 with norton Firewall that stay with door 80 autorizing and my ip is fix.....

1 error - i can see de server outside of enterprise, but he abort when serv the page.....

2 error - not to know encrypt codes