Built using these Harbour defines:
go64.bat
call "%ProgramFiles(x86)%\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvarsall.bat" x86_amd64
set HB_WITH_OPENSSL=c:\OpenSSL-Win32\include
SET HB_WITH_CURL=c:\curl\include
win-make.exe
viewtopic.php?p=201592#p201592
Important, please read this for OLE/ADO:
viewtopic.php?f=3&t=35201