ValidateLicenseAtStartup

Description

Validates a license

bool ValidateLicenseAtStartup(ELicenseBinding licenseBinding, 
                              ref bool needsActivation, ref string returnMsg)

Parameters

Return

Remarks

This function is typically called when your application starts up. It looks for an Activation Key and a Computer Key on the user system. If found, it validates the license and returns the result of the validation.

The validation is a two-step process: client-side validation and server-side validation (optional).

First, the license is validated locally without contacting the server. If the license validation fails because it has expired or the version is wrong, and if server-side validation is enabled, ValidateLicenseAtStartup contacts the server and determine whether the expiry date was extended or whether the user has a maintenance plan that entitles use of the installed version of the product.

If the local license validation succeeds, and if server-side validation is enabled, ValidateLicenseAtStartup contacts the server and perform 2 sets of operations:

• Determines if the license is valid on the server by checking if:

  • the license is found on the server

  • the license was not revoked on the server

  • the current computer is not detected as illegal

  • the client system date is identical to the server's system date, within a specified threshold

• Determines if there were changes to the license on the server-side that need to be applies to the client:

  • the license expiry date was updated on the server

  • the features associated with the license were updated on the server

  • the number of seats associated with the license were updated on the server

If the server-side validation fails, ValidateLicenseAtStartup returns false and sets the property ServerErrorCode.