CheckKey application
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This utility can be used to verify a license key to see what type it is and whether it is valid or not.

 

Enter the same details as you did for GenKey, plus the license you are testing:

 

 

 

Then press the CheckKey button.

 

A message box will pop up verifying whether the key is for an unlimited license or for a time-limited license that is still valid at the selected date.

 

Trial Restriction

 

Notice how the message box above says the license only has 2 days to run. The free trial version of License Generator cannot create unlimited keys. It is restricted to creating time limited keys that are valid for 2 days only. This should be sufficient to test the functionality in your software. You can of cours go on generating new 2-day keys with new start dates for as long as you like for program testing, but to be able to create unlimited keys or sensible trial period keys you will need to purchase an unrestricted license for the product.