Delphi 7 Indy 9 Could - Not Load Ssl Library

Use the Windows native HTTP API via IWinHttpRequest or TServerXMLHTTP . This utilizes the operating system's built-in secure channel (Schannel) layer, allowing your Delphi 7 app to inherit TLS 1.2 and TLS 1.3 support automatically from Windows. Summary Checklist

Delphi 7 is a 32-bit compiler and exclusively produces 32-bit Windows executables. Therefore, you of ssleay32.dll and libeay32.dll .

: Select your TIdHTTP component (or TIdSMTP , etc.) and set its IOHandler property to the TIdSSLIOHandlerSocket component you just added. This tells Indy to use SSL for the connection.

Copy libeay32.dll and ssleay32.dll into the same folder as your compiled Delphi executable. This is the safest method as it avoids contaminating the system System32 folder with older libraries that might conflict with other software. Delphi 7 Indy 9 Could Not Load Ssl Library

For your Delphi 7 application to find these libraries, place ssleay32.dll and libeay32.dll in one of the following locations:

He knew what he had to do. He had to find DLLs compiled with exactly those exported symbols. It was like searching for a needle in a stack of needles, where every other needle was made of poison.

depending on your IdSSLOpenSSLHeaders.pas version. Use the Windows native HTTP API via IWinHttpRequest

If you've followed all the steps but your application still fails, the problem might be with the operating system environment.

Drop a TIdHTTP and a TIdSSLIOHandlerSocket component onto your form, or instantiate them dynamically using the following code structure:

Because Indy 9 is obsolete, it cannot easily support modern TLS 1.3 requirements. If you are struggling with outdated libraries, the recommended long-term solution is to migrate to a newer version of Delphi (e.g., Delphi 11/12) and update to , which has native support for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: Therefore, you of ssleay32

of the DLLs, even if you are running on a 64-bit version of Windows. Google Groups 4. Troubleshooting Checklist Wrong Version

Indy 9 typically requires older versions of OpenSSL. Specifically, versions from the branch or early 1.0.x branches work best. Recommended Version: OpenSSL 0.9.8 or 1.0.0.

In the modern web ecosystem, SSLv2, SSLv3, and TLS 1.0/1.1 have been globally deprecated due to severe security vulnerabilities (like POODLE and BEAST). Almost all modern web servers, APIs, and payment gateways now strictly mandate .