The OnTransactionAbort event occurs if the transaction is aborted. When the OnTransactionAbort event occurs, IIS will process the script's OnTransactionAbort subroutine, if it exists.
The following example sends a response to the client with the transaction aborts:
<%@ TRANSACTION=Required LANGUAGE="VBScript" %>
<% Option Explicit
ObjectContext.SetAbort
Sub OnTransactionAbort
Response.Write "<p><b>The Transaction just aborted</b>."
Response.Write "This message came from the "
Response.Write "OnTransactionAbort() event handler."
end sub
%>