I use version .7.0 Build 4.443.
Hmm even this is difficult for me.
But I thank you for your help.

Hello again.
Now I use source files but show error message in compile:

[Fatal Error] cmdline.dpr(7): File not found: 'TntWindows.dcu'

Why do I get this error?
I'm starting Delphi developers.

Thank you very much.
That's my fault. I copied the wrong code MD5.
Now work perfectly.

Hmm... Why write the: Protected String feature is not well configured!? I tried to start it: "C:\Users\xxxx\Documents\xxxxxx\Projects\My Operating System\Operating System\xxx\xxxx\111182\ChatServer\ChatServer_protected.exe" mypass and "C:\Users\xxxx\Documents\xxxxxx\Projects\My Operat...