This registry folder contains network interfaces
 
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Class\\{4D36E972-E325-11CE-BFC1-08002BE10318}
 
Find the subfolders which corresponds to TAP-Win32 network interfacs.
These will have ComponentId="tap0901". You can't see from here if this is actually the right
network interface, in case you have multiple TAP-Win32's.
Now remember its NetCfgInstanceId, and open:
 
HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}\\YOUR_NetCfgInstanceId\\Connection
 
Here you will should check Name attribute.
 
If you can't find your TAP-Win32 like that, neither will tun2socks.

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