While starting a newly created Oracle 19c Listener, I received the following errors;
C:\Users\win>lsnrctl start LSNR19C
LSNRCTL for 64-bit Windows: Version 19.0.0.0.0 – Production on 06-SEP-2019 13:58:09
Copyright (c) 1991, 2019, Oracle. All rights reserved.
Starting tnslsnr: please wait…
Unable to OpenSCManager: err=5
TNS-12560: TNS:protocol adapter error
TNS-00530: Protocol adapter error
The listener configuration file is as follows:

So, It looks like this is a permission issue,.
I tried the following workaround, I started the CMD window as administrator and started the listener again:


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Thanks
Ahmed