The Remove method deletes a specific item from the Session object's Contents collection.
Session.Contents.Remove( Item|Index )
The Contents.Remove method takes either a string or an integer as an input parameter. If the input parameter is a string, the method will search the contents collection for an item with that name and remove it. If the input parameter is an integer, the method counts that number of items from the start of the collection, and removes the corresponding item.
The following example adds and removes a variable called myName to the Session.Contents collection.
<%
Session("myName") = " "
Session.Collection.Remove("myName")
%>