Setting application icon in Explorer?
Have you selected the icon for your application? (project properties > tab application > symbol and manifest > symbol)
The following example shows how to set a window icon.
By using XAML,
<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" x:Class="SDKSample.MainWindow" Icon="WPFIcon1.ico"></Window>By using c# code,
Uri iconUri = new Uri("pack://application:,,,/WPFIcon2.ico", UriKind.RelativeOrAbsolute);this.Icon = BitmapFrame.Create(iconUri);By using VB,
Dim iconUri As New Uri("pack://application:,,,/WPFIcon2.ico", UriKind.RelativeOrAbsolute)Me.Icon = BitmapFrame.Create(iconUri)For more info, refer this.
Make sure your .ico file contains the right selection of sizes so that the appropriate one displays in explorer.
For Windows you'll want:256 x 256 pixels, 48 x 48 pixels, 32 x 32 pixels and 16 x 16 pixels.
All 32bit (24bit colour, 8bit transparency).