How to hide the install window

Hello,

I made an installation script for an application which does not support silent installation. It works fine although I would like to have the installation window minimized or removed. I can use a little help with this. 

In some documentation there was something written about @SW_HIDE so I added that to the script but it doesn't have any effect. This is the script so far:

#RequireAdmin
 
Run("WinPcap_4_1_3.exe", "", @SW_HIDE)
WinWaitActive("WinPcap 4.1.3 Setup", "", @SW_HIDE)
Send("!n")
WinWaitActive("WinPcap 4.1.3 Setup", "License Agreement", @SW_HIDE)
Send("!a")
WinWaitActive("WinPcap 4.1.3 Setup", "Installation options", @SW_HIDE)
ControlClick("WinPcap 4.1.3 Setup", "Installation options", "[CLASS:Button; INSTANCE:2]") 
WinWaitActive("WinPcap 4.1.3 Setup", "Completing the WinPcap", @SW_HIDE)
Send("!f")

If you have any sugguestions that would be really great and it would be even better if you could provide some example code.

~Zooovel