how to dispoes the xmlDocument object

Question

i am creating the xml documet with the xmlDocumet class object and i save it in the local folder  and send that to the mail add as attachment after sending the mail i am delete that file but at the deletion it throws the error that is

that is used by another process you can't access but the xmlDocument object have not any dispose or finalize method then how to dispose that xmlDocument Object

Answer 1

I should probably make myself clearer: When you put your mouse over the icon a certain text is displayed. I want to programmatically force that same box with text to display without requiring the user to hover the mouse over the icon. Basically an alert.