NSoftware
• IP*Works! Internet Toolkit v5
(includes FTP, HTTP, ICMP, IMAP, DNS, LDAP, Multicast, MIME, MX, Encoding, NNTP, Ping, POP, RCP, Rexec, Rshell, SMTP, SNMP, SNPP, SOAP, Telnet, TFTP, TraceRoute, UDP, Whois, XML, and more.) documentation

• IP*Works! SSL Internet Toolkit v5
(includes FTP/S, HTTP/S, LDAP/S, NNTP/S, POP/S, IMAP/S, SMTP/S, SOAP/S, TELNET/S, and more.) documentation

Persit Software Inc.
• ASPUpload v3.0.0.3 (Persits.Upload) documentation
• ASPEmail v5 (Persits.MailSender) documentation
• ASPEncrypt v2.2 (Persits.Crypto) documentation
• ASPPDF v1.6 documentation
• ASPJPEG v1.8 documentation

ServerObjects Inc.
• ASPHTTP v3.5.3 (ASPHTTP.Conn) documentation
• ASPPOP3 v2.5.2 (POP3svg.Mailer) documentation
• ASPImage v2.01 (ASPImage.Image) documentation
• ASPSock v1.50 (ASPSock.Conn) documentation
• ASPDNS v2.75 (ASPDNS.Lookup) documentation

Dimac
• w3 JMail v4.4 (JMail.SMTPMail) documentation