Update the PATH environment variable to include the directory where the OpenSSL libraries are located. You can do this:
In the Object Inspector, set the IOHandler property to point to your TIdSSLIOHandlerSocket component. 💻 Code Implementation Example
Because Delphi 7 and Indy 9 are legacy technologies, they rely on specific, older versions of OpenSSL. Modern operating systems do not include these files by default, and using the wrong DLL versions will instantly trigger this failure. The Root Causes of the Error Delphi 7 Indy 9 Could Not Load Ssl Library
file. This is the first place Windows looks for dependencies. Avoid System Folders : Do not place them in C:\Windows\System32 , as this can conflict with other applications and the OS. Stack Overflow 3. Debugging the Load Failure
Indy 9 does not support standard, official OpenSSL DLLs. It relies on a heavily customized OpenSSL 0.9.6 build containing distinct exports specifically tailored for Indy 9. Update the PATH environment variable to include the
You do not have to abandon Delphi 7 to get TLS 1.2 support. You can completely uninstall the bundled Indy 9 components and install the latest open-source version of into the Delphi 7 IDE.
For Indy 9, you cannot use standard OpenSSL builds. You must use a "special build" specifically intended for legacy Indy versions. Modern operating systems do not include these files
If possible, upgrading your Delphi 7 environment to use is the best long-term solution. Here is a general roadmap: