Hello,

The trial only includes the compiled files for Lazarus 2.0.12 Win32. You can follow these instructions to install the package

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Installing sgcWebSockets in Lazarus / FreePascal
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1) Unzip the files included into a directory {$DIR}

2) Add the directory where the files are unzipped {$DIR} to the Lazarus library path
under Tools, Environment options, Directories

3) From Lazarus

Choose : File, Open and browse Packages\sgcWebSocketsLazarus.lpk
(First compile and then install)

Compiled files are located on Lazarus Directory.

Kind Regards,
Sergio