Delphi 7 Indy 9 Could Not Load Ssl Library -

OpenSSL 1.0.2u supports TLS 1.2, but Indy 9 does not enable it by default! The SSL context defaults to SSLv23 (which excludes TLS 1.2 in some older builds).

Place ssleay32.dll and libeay32.dll directly in the folder where your compiled executable ( .exe ) resides. This isolates your legacy application and ensures it will not accidentally load a different version of OpenSSL installed globally by another software program.

If upgrading Indy breaks too much legacy code, consider utilizing native Windows HTTP libraries via components like THttpCli from the Overbyte ICS suite, or leveraging the Windows WinHTTP API via COM interfaces. These leverage the operating system's built-in Schannel cryptographic provider, automatically inheriting up-to-date TLS 1.2/1.3 support directly from Windows updates. Delphi 7 Indy 9 Could Not Load Ssl Library

Add a button to your form and execute the following code to test library initialization directly:

uses IdHTTP, IdSSLOpenSSL, // ... other units ... OpenSSL 1

Because Indy 9 is obsolete, it cannot easily support modern TLS 1.3 requirements. If you are struggling with outdated libraries, the recommended long-term solution is to migrate to a newer version of Delphi (e.g., Delphi 11/12) and update to , which has native support for newer OpenSSL versions. Summary Checklist Are ssleay32.dll and libeay32.dll in the .exe folder? Are the DLLs 32-bit? Is TIdSSLIOHandlerSocket linked to the client component? Are you using OpenSSL version 0.9.8 or 1.0.0? If you are encountering this issue, I can help you:

While matching Indy 9 with OpenSSL 0.9.6/0.9.7 will resolve the "Could not load SSL library" error, you will likely encounter an immediate secondary issue when connecting to modern web servers: This isolates your legacy application and ensures it

If you have the correct DLLs in the right place but still see the error, Indy provides a powerful diagnostic function to pinpoint the exact issue. Add a reference to the IdSSLOpenSSLHeaders unit in your code, and after the error occurs, call the WhichFailedToLoad function. This function returns a string explaining why Indy could not load the SSL library.

Next, the ones from a old SVN repository. Error.

Are you open to , or must you stay strictly on Indy 9 ?