Part 3: The 32-Bit Drivers : The Informix Driver : Driver Requirements : Windows

Windows
To access supported remote Informix databases through the Informix driver, you need one of the following:
Use the Setnet32 utility supplied by Informix to define servers and the location of the INFORMIX directory. Use Ilogin to test your connection to the Informix server. The path to the ISQLT09A.DLL must be in your PATH environment variable.

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