Completely hide WPF window on startup?

An alternative to H.B.’s method is just to set the Visibility to hidden and set ShowInTaskbar to false. This still creates the window and lets it do its thing.

<Window x:Class="WpfApplication2.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525" ShowInTaskbar="False" Visibility="Hidden">
    <Grid>

    </Grid>
</Window>