To check your current version of the installed uScope, run uScope and select "Help => About". A uScope version will be provided in the About uScope window, as per example below. If the Serial number field says "DEMO", uScope is used in Trial mode as per the Using uScope in Trial Mode article. For using uScope with the license, please ensure your USB dongle is connected to your computer and verify that the correct uScope version is installed as it is explained in the uScope General Troubleshooting article.
If you are looking for uScope documentation, run uScope and select "Help => Contents & Index...". If you are looking for some particular information, please use the Search tab, type in a key word, click "List Topics", and display a topic of your interest.