You cannot prevent the installer from running. This will happen the first time a user logs on.

We have just two registry writes to let outlook startup with a profile and skip the first run wizard. Al you need to do is create a default profile and change Path_goes_here to the actual path. In the default profile you can even use variables like %username%. It depends on your situation but it worked for me for several years now.

 Code:
$rc = DelValue("HKCU\Software\Microsoft\Office\11.0\Outlook\Setup", "First-Run")
$rc = WriteValue("HKCU\Software\Microsoft\Office\11.0\Outlook\Setup", "ImportPRF", "Path_goes_here\outlook.prf", "REG_SZ")
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Mart

- Chuck Norris once sold ebay to ebay on ebay.