Each time association is used, a new NetBeans instance is
stared regardless of whether it is already running or not
OpenFile server is started one minute after Utilities module was
installed. I hope you tried to open associated files in first minute
of NetBeans. After that time associations are opened in already
verified in [nb_release34_rc1](200207252340)
Resolved for 3.4.x or earlier, no new info since then -> closing.