How to identify a USB dongle on my PC or on another PC on the (same) web

Hi all,
I need to check if a USB dongle is currently connected to my PC or was pulled out.
The dongle might be connected to another PC on my web and then I need to check the same in remote mode. That is, check that it is still connected to the other PC from my PC.
I tried to implement this with the "Find.vi" from the System VIs group (see attached VIs), but it seems that it doesn't recognize my dongle.anks
Any ideas why is my USB dongle not recognized by the System VIs?
Any ideas how to implement it differently?
Note: My LV version is 2011.
I'd be gratefull for any idea...
Thanks,
Mentos.

Hello James and Dennis,
Thank you for the reply.
I do understand your explanations.
Let me add some more details:
My dongle serves as a license key for an application.
The dongle itself is bought from a third party so, in response to James suggestions, I do not have a set of commands for it.
For the same reason, I don't want to play with its baud rate.
The Visa Find Resource.vi also can not find it.
I noticed that there are some recommendations on the forum to use Devcon.
I know that's an option (at least for detecting the dongle on my local PC), but I wouldn't like to use it since I'll have to install it on every PC where my application is installed and that's not so convenient.
I tried to use the Devmgr.dll, inputing my USB Device Instance Path (see attached picture). It does detect my dongle, but there are 2 problems:
1. It displays the device manager GUI when run and waits for response. This is not good for my application. I can't have any pop ups.
2. The Device instance Path I read from my dongles is a bit different for each dongle, so there's no constant value I can put in my code.
Assuming I just need to detect the dongle on my LOCAL PC for now, is there any other dll I can use (Kernel ?) ???
Any other option to do this (without installing an additional application)?
Thanks,
Mentos.

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