The help documentation is a bit out of date (we're working on updating it). Look at the example app in the API\Xojo folder and you will see you need to create a TurboActivate instance and then call the method on that instance. Like so:
'TODO: goto the version page at LimeLM and paste this GUID here ta = new TurboActivate("18324776654b3946fc44a5f3.49025204") ' Check if we're activated, and every 90 days verify it with the activation servers ' In this example we won't show an error if the activation was done offline ' (see the 3rd parameter of the IsGenuine() function) ' https://wyday.com/limelm/help/offline-activation/ Dim gr As IsGenuineResult = ta.IsGenuine(DaysBetweenChecks, GracePeriodLength, True) isGenuine = (gr = IsGenuineResult.Genuine Or _ gr = IsGenuineResult.GenuineFeaturesChanged Or _ gr = IsGenuineResult.InternetError)