vCloud/ClickOnceSetup/UCWaitingProgress.xaml

<UserControl x:Class="ClickOnceSetup.UCWaitingProgress"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
             xmlns:local="clr-namespace:ClickOnceSetup"
             mc:Ignorable="d" 
             d:DesignHeight="300" d:DesignWidth="300">
    <UserControl.Resources>
        <Storyboard x:Key="waiting" Name="waiting">
            <DoubleAnimation Storyboard.TargetName="SpinnerRotate" Storyboard.TargetProperty="(RotateTransform.Angle)" From="0" To="359" Duration="0:0:02" RepeatBehavior="Forever" />
        </Storyboard>
    </UserControl.Resources>
    <Image Name="image" Source="loading.png" RenderTransformOrigin="0.5,0.5" Stretch="Uniform" Loaded="Image_Loaded">
        <Image.RenderTransform>
            <RotateTransform x:Name="SpinnerRotate" Angle="0" />
        </Image.RenderTransform>
    </Image>
</UserControl>