License for OpenEye Toolkits

A license file from OpenEye Scientific Software is required to run any OpenEye toolkit. A license file can be requested/obtained by contacting OpenEye at sales@eyesopen.com.

At startup, the toolkit looks for a valid license in the following default locations:

  • In a file specified by the environment variable OE_LICENSE.

  • In a file named oe_license.txt in the directory specified by the environment variable OE_DIR.

  • In a file named oe_license.txt in the user’s platform-specific local OpenEye application data directory. The location of this directory is detailed below:

    • Microsoft Windows:

      C:\Users\USERNAME\AppData\Local\OpenEye

  • In a file named oe_license.txt in the current working directory

  • License failure results in fatal error. The examples in OEChemIsLicensed show how to check if a valid license is available.