The Unlock method enables other clients to modify the variables stored in the Application object after it has been locked using the Lock method. If you do not call this method explicitly, the Web server unlocks the Application object when the script ends or times out.
Application.Unlock
<%
Application.Lock
Application("NumVisits") = Application("NumVisits") + 1
Application.Unlock
%> This application page has been visited <%= Application("NumVisits") %> times!
In the preceding example the Unlock method releases the locked object so that the next client can increment NumVisits.