Option One
Check Native Access
Open up Native Access (the program which controls licenses and updates to Native Instrument products).
Click the “Installed products” tab on the left, and you will see a list of all available software and instruments on the right. Your current installed of Kontakt are listed here, along with their current version number and if there is any available updates.
You’ll notice on the screenshot here it mentions either FULL VERSION or PLAYER on the right hand column.
Note! This may look slightly different depending on your version of Native Access.
Option Two
Check the plugin within your DAW
Once you’ve loaded up Kontakt into a channel strip in your DAW, you can open up the window to check.
It will say KONTAKT PLAYER in the top left of the window if this is what loaded.
You can also click on the KONTAKT Logo which will bring up a dialogue box similar to the ones below which will let you know which type is loaded and you can also check the version number (e.g. 5.8.1 or 6.0.4):