TaurusSSL can't find SSL libraries

[dpapdpap]

I installed TaurusTLS and I made a test app with just two components: an TidHTTP1 and a TTaurusTLSIOHandlerSocket. I set HTTP1.IOhandler:= TaurusTLSIOHandlerSocket1, I download DLLs v3.6/64bit puting them in app's dir and I tried a HTTP1.POST but i receive the error couldnotloadSSLlibrary. What i missed?
PS. Lazarus, Windows, app all are 64 bit
PS2. The same error raises when I'm trying to run the Demo "TaurusHTTPserver". It compiles ok but executing "LHTTP := THTTPServer.Create" raises the error

[JPeterMugaas]

The OpenSSL 3.6 version for Win64 is at:

https://github.com/TaurusTLS-Developers/OpenSSL-Distribution/raw/refs/heads/main/binaries/Windows/openssl-3.6.0-win64.zip

That .ZIP file contains the following files you need to copy to the same directory as your executable:

libcrypto-3.dll
libssl-3.dll

and I also typically recommend installing:

openssl.exe

See if installing those files helps.

[dpapdpap]

Thank you Peter for your reply Unfortunately doesn't work for me. I have installed TaurusTLS (I can see the two components in palete), I downloaded the two files you proposed me in the directory TaurusTLS-main\demos\TaurusHTTPserver and I open with Lazarus4.4/64b the demo app taurusHTTPServer.lpi. It compiles ok but when running reaches at "LHTTP := THTTPServer.Create" raises the error "TLSouldnotloadSSLlibrary"! What I'm missing? regards From: J. Peter Mugaas ***@***.***> Sent: Tuesday, December 9, 2025 12:02 PM To: TaurusTLS-Developers/TaurusTLS ***@***.***> Cc: dpapdpap ***@***.***>; Author ***@***.***> Subject: Re: [TaurusTLS-Developers/TaurusTLS] TaurusSSL can't find SSL libraries (Discussion #172) The OpenSSL 3.6 version for Win64 is at: <https://github.com/TaurusTLS-Developers/OpenSSL-Distribution/raw/refs/heads /main/binaries/Windows/openssl-3.6.0-win64.zip> https://github.com/TaurusTLS-Developers/OpenSSL-Distribution/raw/refs/heads/ main/binaries/Windows/openssl-3.6.0-win64.zip That .ZIP file contains the following files you need to copy to the same directory as your executable: libcrypto-3.dll libssl-3.dll and I also typically recommend installing: openssl.exe See if installing those files helps. - Reply to this email directly, <#172 (comment) ent-15206997> view it on GitHub, or <https://github.com/notifications/unsubscribe-auth/AOUQ2HXLFKPKDAJMVGPEZZL4A 2MZBAVCNFSM6AAAAACOPCPKLWVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTK MRQGY4TSNY> unsubscribe. You are receiving this because you authored the thread. <https://github.com/notifications/beacon/AOUQ2HQH4FYYNLVHMHINDUD4A2MZBA5CNFS M6AAAAACOPCPKLWWGG33NNVSW45C7OR4XAZNRIRUXGY3VONZWS33OINXW23LFNZ2KUY3PNVWWK3T UL5UWJTQA5AFFK.gif> Message ID: < <mailto:TaurusTLS-Developers/TaurusTLS/repo-discussions/172/comments/1520699 ***@***.***> ***@***.*** .com>

[tregubovav-dev]

Let me briefly check it in my environment.

[tregubovav-dev]

Dear @dpapdpap,

I've checked idHTTPServer with TaurusTLSServerIOHandler components. They work as expected.
I would suggest to read TaurusTLS deployment steps to understand the requirements.

Please also check steps below:

1. Lazarus configured to build Windows64 application
2. Required OpenSSL library files (libcrypto-3-x64.dll and libssl-3-x64.dll) are located in the application directory or in the path included into Windows64 PATH environment variable.

P.S.
I found that the Peter mistyped library file names in his reply. Please use TaurusTLS deployment for correct reference.

[dpapdpap]

Yes! It runs ok now. Thank you all

[tregubovav-dev]

Glad to hear that! Have a joy with your project development!

[tregubovav-dev]

Closed as resolved.