9 Could Not Load Ssl Library | Delphi 7 Indy

The "Could not load SSL library" error in Delphi 7 with Indy 9 usually occurs because the application cannot find the correct version of the required OpenSSL DLLs. Indy 9 is compatible with older versions of OpenSSL and often requires specific builds to function correctly. 1. Download Compatible DLLs

What you lose:

The DLLs were found, but they are the wrong version and are missing the specific exports Indy 9 expects (often functions ending in 2. Download the Correct DLL Versions Indy 9 is an older release and is not compatible Delphi 7 Indy 9 Could Not Load Ssl Library

Step 1: The Correct DLL Version

You need OpenSSL 1.0.2u (the last version compatible with the 1.0.0 API) or 0.9.8zh. However, modern antivirus and Windows Defender often flag 0.9.8 as a "legacy vulnerability" and quarantine it. The "Could not load SSL library" error in

Step 4: The IdOpenSSLSetLibPath Hack

Indy 9 (specifically the version included with D7) does not have the modern IdSSLIOHandlerSocketOpenSSL methods. You need to use the global variable. libeay32

Here's an example of how to use SSL/TLS with Indy 9 in Delphi 7:

• libeay32.dll (The crypto library)
• ssleay32.dll (The SSL library)

Before swapping files, use Indy’s built-in diagnostic tool to see the load failed. Call the WhichFailedToLoad function from the IdSSLOpenSSLHeaders unit immediately after the error occurs. If it returns empty:

• Delphi 7 was built for Windows 98/2000/XP.
• Indy 9 (specifically the version bundled with D7) was compiled against OpenSSL 0.9.8.
• OpenSSL 0.9.8 was officially end-of-lifed (EOL) by the OpenSSL team in 2007 (yes, 17 years ago as of this writing).