IdHTTP1.IOHandler := IdSSLIOHandlerSocket1; IdHTTP1.Get('https://example.com'); Use code with caution. Copied to clipboard Troubleshooting Tips Dependencies:
OpenSSL 0.9.6 or 0.9.7 (0.9.6m is widely considered the most stable pair for Indy 9). Filenames Needed: You must find exactly two files: ssleay32.dll libeay32.dll 2. Verify Bitness (32-bit vs. 64-bit) Delphi 7 compiles strictly 32-bit Windows applications .
The error in Delphi 7 with Indy 9 typically occurs because the specific version of OpenSSL DLLs required by the component is missing, incompatible, or inaccessible. 1. Core Problem: Version Incompatibility
To resolve the error, you need to download and install the correct OpenSSL library version compatible with Indy 9.
The OpenSSL binaries ( ssleay32.dll and libeay32.dll ) are missing from the application directory or system path. Delphi 7 Indy 9 Could Not Load Ssl Library
with modern OpenSSL 1.1.x or even standard 1.0.x builds. It requires specific versions of two files: ssleay32.dll libeay32.dll For Indy 9, you typically need the OpenSSL 0.9.6 series. You can find these archived on the Indy Fulgan SSL Archive
If you need TLS 1.2 or 1.3 support, note that OpenSSL 1.0.2 supports TLS 1.2 but TLS 1.3. For TLS 1.3, you genuinely have no choice but to migrate to a modern Delphi version (10.x+ with Indy 10). But if your legacy app needs to connect to an old server (TLS 1.0/1.1), the solution above will keep the lights on for years to come.
Add this to your main form's OnCreate or in a initialization section:
var IdSSL: TIdSSLIOHandlerSocket; begin IdSSL := TIdSSLIOHandlerSocket.Create(IdHTTP1); IdHTTP1.IOHandler := IdSSL; // Indy 9 typically uses SSLv2, SSLv3, or TLSv1 IdSSL.SSLOptions.Method := sslvTLSv1; end; Use code with caution. Copied to clipboard IdHTTP1
Are you open to , or must you stay strictly on Indy 9 ?
You can manually uninstall Indy 9 from Delphi 7 and install the latest version of Indy 10. Indy 10 supports modern OpenSSL binaries (0.9.8, 1.0.2, and some custom forks support up to 1.1.1) which allow TLS 1.2 connections.
Ensure that OpenSSL libraries are installed on your system. You can download the OpenSSL libraries from the official OpenSSL website. Make sure to download the correct version (32-bit or 64-bit) that matches your Delphi 7 installation.
Indy 9 does not have built-in SSL capabilities. Instead, it acts as a wrapper that calls external OpenSSL binaries. The error triggers due to three main reasons: Verify Bitness (32-bit vs
Indy 10 is fully compatible with Delphi 7 and actively supports newer OpenSSL versions (the 1.0.2 branch, specifically versions like 1.0.2u ). OpenSSL 1.0.2 supports TLS 1.2 connections. You will need to remove the native Indy 9 packages from your Delphi IDE components list and compile/install the Indy 10 package source.
Suggest for Delphi 7 that support modern TLS. Help you find trustworthy, older DLL files .
. Windows searches the application directory first before checking system paths. Match Bitness: Since Delphi 7 produces 32-bit applications, you
The last good version is often labeled as "OpenSSL 1.0.2 Light for Windows (Visual Studio 6 build)".
During development, place them in C:\Program Files (x86)\Borland\Delphi7\Bin so the Delphi IDE can access them when running your project in debug mode.
Have you exorcised this SSL ghost? Share your horror stories in the comments below.