If you have followed all steps and still get the error, you need to debug the DLL loading process.
libeay32.dll (548,864 bytes) ssleay32.dll (159,744 bytes)
: Copy both libeay32.dll and ssleay32.dll directly into your application's executable directory. Troubleshooting & Diagnostics Delphi 7 Indy 9 Could Not Load Ssl Library
Call this early – it isolates the failure from complex socket logic.
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. If you have followed all steps and still
If you have the source code, backport IdSSLOpenSSLHeaders from a newer Indy (10.5+) into your Delphi 7 project. If you don't, use Stunnel.
The "Could Not Load SSL Library" error in using Indy 9 is almost always caused by a mismatch between the Indy version and the OpenSSL DLL files provided. Because Indy 9 is extremely old, it is not compatible with modern OpenSSL versions (1.0.x, 1.1.x, or 3.x) and requires specific, legacy binaries. Why the Error Occurs Copy libeay32
Look for "OpenSSL for Windows" version 1.0.2u (the final release of the 1.0.2 branch) or 0.9.8zh . These versions maintain backward compatibility with the Indy 9 IdSSLIOHandlerSocket component.
