Implementing the Aero Theme in XP

In the %SystemRoot%\Windows\assembly folder, you will find an assembly named "PresentationFramework.Aero". This is the assembly we'll be using.

In Application.xaml file, under <Application.Resources>, paste this :

<ResourceDictionary source="/PresentationFramework.Aero,Version=3.0.0.0, Culture=neutral,PublicKeyToken=31bf3856ad364e35,ProcessorArchitecture=MSIL;component/themes/aero.normalcolor.xaml" />

Make sure that the Version and PublicKeyToken match with the details you saw in the folder. Replace 31bf3856ad364e35 with the PublicKeyToken shown in the folder.