property assigment does not work

[relativ]

Program IFSTest;
var
	SQLConnection: TDBConnection;
	SQLQuery: TDBQuery;
Begin

	SQLConnection:= TDBConnection.Create();

	SQLConnection.ProviderName := 'MySQL'; // property assigment time whole program getting exit

SQLConnection.UserName := 'root';
	SQLConnection.Password := '';
	SQLConnection.Server := 'localhost';
	SQLConnection.Database := 'mysql';
	SQLConnection.Open();
	
	SQLQuery:= TDBQuery.Create();
	SQLQuery.Connection := SQLConnection;
	SQLQuery.SQL.Text := 'select * from user';
	SQLQuery.Open;
	while not SQLQuery.Eof do
	begin
                                Memo1.Lines.Add(SQLQuery.FieldByNameAsString('User')) ;
		SQLQuery.Next;
	end;
	
	SQLQuery.Close();
	SQLQuery.Free();
	
	SQLConnection.Close();
	SQLConnection.free();
	
End.

hello that 2 object calling from dll and added to pascalscript plugings collection then i test with this code but object creation succeded then exit whole program when the property set by text