ZLib 1.2.12 Delphi - CBuilder

ZLib Statically Linked 

sgcWebSockets Enterprise Edition includes a custom Indy version which makes use of ZLib  to statically link the .obj files, those files have been updated to the latest ZLib version, so you only need to download the latest sgcWebSockets version to apply this fix.

This is the option by default, so for 99% of users, just updating the sgcWebSockets version will be enough (sgcWebSockest 2022.4+).

ZLib Dynamic Library 

From sgcWebSockets 2022.4.0, instead of statically link the .obj files in your binary, you can load the zlib library dynamically.

To do this, add the following Conditional Define to your project:

SGC_DYNAMICLOAD_ZLIB

As an alternative, you can edit the file sgcIndy.inc (located in the source folder) and add the following line

{$DEFINE SGC_DYNAMICLOAD_ZLIB}

Finally, you must set the location where is the ZLib library, to do this, use the following method and pass the Full Path (without the name of the library) where is located

sgcIdZLibHeaders.IdZLibSetLibPath('c:\software\zlib');

*This configuration is only valid for sgcWebSockets Enterprise Edition with Source code. The compiled ZLib dll can be downloaded from the private account.