Indy 9 specifically looks for functions ending in _indy in some builds, which standard OpenSSL binaries do not have. Step-by-Step Resolution 1. Download the Correct DLLs
Check the Indy Sockets GitHub for archived 1.0.2 builds if you have upgraded to Indy 10. 2. Placement Delphi 7 Indy 9 Could Not Load Ssl Library
For Indy 9, you cannot use the latest versions of OpenSSL. You must use the legacy binaries: Indy 9 specifically looks for functions ending in
Place both ssleay32.dll and libeay32.dll directly in the folder where your compiled project's executable ( .exe ) resides. Avoid placing them in Windows system directories to prevent conflicts with other software. Delphi 7 Indy 9 Could Not Load Ssl Library
Indy 9 is very old and requires specific legacy builds of OpenSSL (often version 0.9.6 ). It is generally incompatible with modern OpenSSL 1.1.x or 3.x libraries.