Hello everybody :) i am a simple delphi6 user, trying to build some applications to run on cnc lathes; cnc lathes have windows

Hello everybody :) i am a simple delphi6 user, trying to build some applications to run on cnc lathes; cnc lathes have windows

at this moment, i put shortcuts into win+startup menu, so applications are starting and all is ok; but i would like to have a start up behaviour from code

this is what i have used :

procedure SetAutoStart(AppName, AppTitle: string; bRegister: Boolean);
const RegKey = '\Software\Microsoft\Windows\CurrentVersion\Run'; // Run or RunOnce
var Registry: TRegistry;
begin
Registry := TRegistry.Create;
try Registry.RootKey := HKEY_LOCAL_MACHINE;
if Registry.OpenKey(RegKey, False)
then begin
if bRegister = False then Registry.DeleteValue(AppTitle)
else Registry.WriteString(AppTitle, AppName);
end;
finally Registry.Free;
end;
end;

this code creates the key inside the HKLM, but at start-up, i receive an error

the error is the same on all 3 computers ( my PC + 2 lathes )

i have googled it, and it seems that this case is common

please, how can i fix this behaviour ?

i have attached the "error" and "specs" for my pc, lathe1, lathe 2

kindly !