How to forbid to offer reboot ?

This was my steps:
1) copy setup.cfg to the client\win32\setup.cfg
In the setup.cfg
....
ShowDialogs=No
ShowProgress=Yes
ShowFinish=No
..

2) modify client\win32\setup.ini
...
EnableLandDlg=N
SuppressReboot=N

3) cd ...client\win32\setup.exe

4) Installation process has reached the end notifies:
For application of changes it is necessary to reboot.
Now or later?

How to forbid to offer reboot ?

Serg