Hi All,

I'm trying to delete all stuff from previous installation of product, in 
this case I have to delete directory. This works fine:

<CustomAction Id="SetPathToCmd" Property="cmd" 
Value="[SystemFolder]cmd.exe" />
<CustomAction Id="DeleteAirApp" Property="cmd" ExeCommand='/C IF EXIST 
"[APPLICATIONROOTDIRECTORY]" RD /S /Q "[APPLICATIONROOTDIRECTORY]"' />

However black window appears during this process so I have two questions

 1. Is it possible to hide this black window?
 2. How to verify directory exists or not?

    -- 
    Kind Regards,
    Maxim Kopeyka

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