System Reboot using Windows Installer

Hi All,

I need to reboot the system at the beginning of installation, how can I do
this, I am using Windows Installer 3.1 version.
I am developing a msi which will install applications, drivers on Windows XP
Embedded system. I have write filter protection on my XPe system, to disable
this filter we need to elegantly reboot the system after issuing write filter
disable command. So everytime new application or driver is to be installed I
need to first disable write filter and restart the system and then begin with
the installations.
I have created an Installer Class in C#(.dll) using VS 2005; I am referring
to this dll in my installer project. Anybody know how to achieve this, can we
make use of “OnBeforeInstall” event?

Thanks & Regards
Roshan.