Delphi 7 Indy 9 Could Not Load Ssl Library

Delphi 7 Indy 9: Could Not Load SSL Library - A Comprehensive Guide

Introduction

Indy 9 is a popular networking library for Delphi, and SSL (Secure Sockets Layer) is a cryptographic protocol used to secure online communications. However, some Delphi 7 developers using Indy 9 may encounter the error "Could Not Load SSL Library" when trying to use SSL/TLS functionality. This guide provides a step-by-step solution to resolve this issue.

$DEFINE USE_SSL
$DEFINE OPENSSL_10_COMPAT

Could not load SSL library

  1. Download the latest IdSSLOpenSSLHeaders.pas from the Indy 10 repository.
  2. Manually backport it to Indy 9 syntax (removing advanced features).
  3. Recompile your Delphi 7 project.

Because of export restrictions, these are not included with Delphi. You can find compatible archived binaries at: Embarcadero Indy OpenSSL Archive : Look for indy_OpenSSL096m.zip or similar versions. Indy Project GitHub Delphi 7 Indy 9 Could Not Load Ssl Library

Version Incompatibility: Indy 9 only supports OpenSSL versions up to 0.9.6. Standard OpenSSL DLLs often contain exports that Indy 9 cannot interpret. Delphi 7 Indy 9: Could Not Load SSL

Note: Some custom builds are statically linked to MSVCRT – easier to drop DLLs and go. Could not load SSL library

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