Ok, I post the reply : I solved it with a help of a colleague!
To find the name of the HASP device (the USB key) you type in command line:
sc queryex type= service state= all
to have this printed on a text file:
sc queryex type= service state= all > services_test.txt
Then you search for 'hasp' in this file (the .txt you just created) and look at the 'DISPLAY NAME'
In our computer this was named 'Sentinel LDK License Manager'.
For The 'Plug and Play', they had DISPLAY NAME as 'Upnp Device Host' and 'PnP - X IP Bus Enumerator' and I kept both!
Maria