This is in addendum to Kenneth Winter's recent thread about re-keying door
locks.  There is another alternative to obtaining or filing down the lock
pins.  Simply remove them!  My sliding door lock had 7 pins of which 2 were
too tall.  Rather than filing them down or trying to replace them, I took
them out.  The lock works fine and only a locksmith will know the
difference.  Most thieves don't pick locks but break a window instead.  Of
course I still have 5 pins for security; if most or all of the pins don't
match your key you may be able to re-arrange some of them to get alignment.