Problem with HideWindow
Ok

I want to hide the installer window to only use 2 plugins.
The code is like the follow:

Function .onInit
Call GetParameters
FunctionEnd

Section
HideWindow
IfFileExists "$INSTdir\blabla.jpg" 0 +3
MessageBox MB_YESNO "This file is already installed, replace it ?" IDYES +2 IDNO 0
Quit
advsplash::show 1000 500 0 -1 "$INSTdir\blabla.jpg"
...
...
...
SectionEnd


The Hidewindow it hide correctly the installer window, but when the MessageBox it appear, just bfore that happend, the installer window make a flash in and flash out.
I tried to insert other HideWindow on the .onInit, but the problem go on.

If i insert all the code on the .onInit, the problem not happend. But if i do that i get the problem of the Banner. This is the internal banner from the nsis "unpacking data" it appear.

Somebody know how can i prevent that ?

Thanx