Indy 9 generally requires OpenSSL 0.9.6 DLLs.
Here is the only reliable methodology to get Indy 9 loading SSL on Windows 10/11. Delphi 7 Indy 9 Could Not Load Ssl Library
You check your code. IdSSLIOHandlerSocketOpenSSL is attached. The paths are correct. You swear you installed OpenSSL. Yet, the ghost persists. Indy 9 generally requires OpenSSL 0
Do not download random DLLs from DLL download sites. Use known, verified builds: IdSSLIOHandlerSocketOpenSSL is attached
. If it can't find them, or if the versions are too new, it gives up. Step 1: Get the Right DLLs Indy 9 is quite old, and it is not compatible with modern OpenSSL 1.1.x or 3.x branches. You must use the Find the OpenSSL binaries for version (specifically versions like 0.9.8zb or similar). Ensure you are using
If the DLLs are present but the error persists, use Indy's built-in diagnostic tools: WhichFailedToLoad IdSSLOpenSSLHeaders clause and call WhichFailedToLoad()
In your Delphi form or data module: