Hi Friend

           You can go through the "Recovery Scenario" for
this kind of problem. Steps are..in QTP 9.2

Resources-> Recovery Scenario Manager-> click on first image
that is with right side of "Scenarios"(only the enabled
image)text-> read the content and "Next"-> these are the
condition wherever we use Recovery Scenarios select one of
them according wat type of error you have(pop up
window)->"Next"->Click on "Hand" pointer and capture the
popup window and "Next"->"Next"->Select the event you want
to perform "next"->"Next"-> From Recovery operation window
un select the check box and "next"-> "next->"next"-> Write
some description or not(optional)->"next"-"Finish"->"Save"
in your destination.

         Now you can use that in your script. 

Have a look(softestonline-neeraj043.blogspot.com)