# Properties

| Name                    |                                          Type                                         | Description                                                                                                                                                       |
| ----------------------- | :-----------------------------------------------------------------------------------: | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ActivationKey           |                                         string                                        | the activation key                                                                                                                                                |
| ComputerKey             |                                         string                                        | the computer bound key                                                                                                                                            |
| EvaluationExpired       |                                          bool                                         | flag that can be checked after the license has been validated successfully to determine if a license has expired.                                                 |
| EvaluationRemainingDays |                                          int                                          | value that can be checked after the license has been validated successfully to determine the number of remaining days for the tria/subscription                   |
| IsEvaluation            |                                          bool                                         | flag that can be checked after the license has been validated successfully to determine if a license is a trial/subscription or a permanent license               |
| QlmLicenseObject        |                                       QlmLicense                                      | QlmLicense object used internally by LicenseValidator                                                                                                             |
| ServerErrorCode         | [EServerErrorCode](/docs/api-reference/.net-api/qlmlicense/enums/eservererrorcode.md) | error code returned by the server                                                                                                                                 |
| WrongPoductVersion      |                                          bool                                         | flag that can be checked after the license has been validated successfully to determine if the user is running a version that does not correspond the license key |


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