XSLTForms/ASP.NET

In ASP.NET, XSLTForms can be used server-side to process an XForm by invoking the asp:Xml Control, for example as follows:

<asp:Xml ID="Xml1" 
         runat="server" 
         DocumentSource="~/myform.xforms" 
         TransformSource="~/xsltforms/xsltforms.xsl" 
         EnableViewState="False" 
 ></asp:Xml>

The ASP.NET DOM interface can be used to process submissions from the form, thus:

<%@ Page Language="C#"  %>
<%
System.Xml.XmlDocument doc = new System.Xml.XmlDocument();
doc.Load(Request.InputStream);

// process your xml here....

%>

Sources: This page was originally drafted based on information from William Velasquez, to whom thanks.