IronWebScraper License Key for ASP.NET

Updated:June 10, 2025

The problem has been resolved as of IronWebScraper version 2024.3.6.

Exception: Unhandled exception. IronSoftware.Exceptions.LicensingException: IronWebScraper must be licensed for development.

For older IronWebScraper versions, specifically those between versions 2023.4.13 and 2024.3.6, there is a known licensing issue in:

ASP.NET projects
.NET Framework version >= 4.6.2

The key stored in a Web.config file will NOT be picked up and used by the product.

Workaround

To address this issue, it is recommended to retrieve the license key from the Web.config file using ConfigurationManager in the code, and then apply it to the License.LicenseKey property.

Example:

<configuration>
  ...
  <appSettings>
    <add key="IronWebScraper.LicenseKey" value="IRONWEBSCRAPER-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

<configuration>
  ...
  <appSettings>
    <add key="IronWebScraper.LicenseKey" value="IRONWEBSCRAPER-MYLICENSE-KEY-1EF01"/>
  </appSettings>
  ...
</configuration>

XML

With the XML file provided above, we can use ConfigurationManager to retrieve the license key value and pass it to the IronWebScraper.License.LicenseKey property.

// Retrieve the license key from the appSettings section of the Web.config file.
string licenseKey = ConfigurationManager.AppSettings["IronWebScraper.LicenseKey"];

// Assign the license key to the IronWebScraper's LicenseKey property.
IronWebScraper.License.LicenseKey = licenseKey;

// Retrieve the license key from the appSettings section of the Web.config file.
string licenseKey = ConfigurationManager.AppSettings["IronWebScraper.LicenseKey"];

// Assign the license key to the IronWebScraper's LicenseKey property.
IronWebScraper.License.LicenseKey = licenseKey;

' Retrieve the license key from the appSettings section of the Web.config file.
Dim licenseKey As String = ConfigurationManager.AppSettings("IronWebScraper.LicenseKey")

' Assign the license key to the IronWebScraper's LicenseKey property.
IronWebScraper.License.LicenseKey = licenseKey

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Curtis Chau

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Technical Writer

Curtis Chau holds a Bachelor’s degree in Computer Science (Carleton University) and specializes in front-end development with expertise in Node.js, TypeScript, JavaScript, and React. Passionate about crafting intuitive and aesthetically pleasing user interfaces, Curtis enjoys working with modern frameworks and creating well-structured, visually appealing manuals.

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