How to add an XML File to my project folder at runtime??

Question

Hi,

I have a folder MyFiles in my web applications. Using Server.Mappath() I can access that folder.

When a user runs the application and clicks a button, a new xmlfile should be added to that folder with the data which he enters.

Can any one tellme how to do this?? I am using ASP.NET 2.0 and C#.

Thank You