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Informix Error -41004

-41004 The INFORMIX.INI file does not have a protocolname or has a format

error.

Check the INFORMIX.INI file. If you did not define a protocol name variable in the InetLogin structure, the [INET_CONNECTION] section must have a protocol name. You must define the protocol name in the [INET_CONNECTION] section with the following format:

protocol=protocolname

Oninit® Troubleshooting Guidance

Reasons / Common Causes

-41004 fires when INFORMIX.INI's [INET_CONNECTION] section is missing a protocol name, or the InetLogin structure didn't define one in code — per the official guidance.

  1. No protocol name variable defined in the InetLogin structure, and none in [INET_CONNECTION] either, per the official guidance — the direct, only cause.
Solutions / Resolution
  1. Define the protocol name in [INET_CONNECTION] using the format protocol=protocolname, per the official guidance.
Examples
The required protocol-name format
[INET_CONNECTION]
protocol=tcpip
Diagnostic Checks
  1. Check [INET_CONNECTION] for a protocol=protocolname line, and add or correct it if missing or malformed.
Related Errors / Related Topics
  • -41000 — "Error in reading the [INET_CONNECTION] section of the INFORMIX.INI file." A related INFORMIX.INI configuration error, on the section heading itself rather than its protocol-name entry.
  • -41001 — "The INFORMIX.INI file does not have a hostname or has a format error." The equivalent error for the host-name entry.
  • -41002 — "The INFORMIX.INI file does not have a username or has a format error." The equivalent error for the user-name entry.
  • -41006 — "Protocolname is not in the [INET_PROTOCOL] section of the INFORMIX.INI file." A related protocol-configuration error, on the matching [INET_PROTOCOL] entry rather than [INET_CONNECTION]'s protocol name.

INFORMIX.INI's [INET_CONNECTION] section is missing a protocol name — add protocol=protocolname.