The best way to get license information is generally to run a license report from the license client. This may look slightly different due to the age of the license client software, however, these instructions should suffice for version 19.2 of licensing.
Open the license client program.
click on the advanced tab.
Click on the Create Reports link (option 5 here, but the numbering may be different for other versions).
Choose to save as a text file, save it to a location that you can find. The save defaults to the documents folder.
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Choose a location and save the file.
You should see the file was created successfully.
Open HTML file and view the activation codes used for this license client.
Repeat the Operation for the .TXT file is needed.