Dear Ms/Mr
I downloaded offline version of PostgreSQL v11 unpacked and run the code
pg_ctl --help.
It gave an error, wanted libwinphread-1.dll
Downloaded that library from
https://osdn.net/projects/sfnet_sixtyfourbitcompiles/downloads/64bit/libwinpthread-1.dll/
Now it works!!!
Please update (or what else needs to be done) in order to use offline
version of PostgreSQL v11.
Thank you very much for your product
Your Sincerely
Nurmyrat