If you want to use XAML control, you need to have ASP.NET 3.5 extension in your machine. then, you can use Silverlight control in aspx page of ASP.NET 3.5 extension web application.
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager runat="server" ID="ScriptManager" />
<asp:Silverlight runat="server" ID="silverlightLayout" InstallationMode="Inline" Version="1.1" Source="Page.xaml"
EnableHtmlAccess="true" Windowless="true" Width="844" Height="472" PluginBackColor="Transparent" />
</div>
</form>
</body>
</html>