How to get rid of the blurry fonts for menus when using WPF?

Question

WPF beginner here. I'm trying to mimic the font style used in Visual Studio 2010 for menus. Under Windows XP menus look blurry.

How can my code be changed to get the same result?

<Window x:Class="Test_WPF.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="480" Width="640">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Menu IsMainMenu="True">
            <MenuItem Header="_File" />
            <MenuItem Header="_Edit" />
            <MenuItem Header="_View" />
            <MenuItem Header="_Window" />
            <MenuItem Header="_Help" />
        </Menu>
    </Grid>
</Window>