[PLUG] What program is using a library?

[John Jason Jordan]

Today Ubuntu tells me that I have 25 updates available. The majority
have to do with something called aqbanking. At one time I tried GnuCash
and another time I had Kmymoney installed, but I have done a complete
removal of both a long time ago. The only accounting program I use is
Quickbooks, and that is running under Crossover Office. I think I
should just remove all these things, but first I need to figure out
what installed them. I know I read somewhere how you can find out what
package installed a library, but I can't find the secret command. Does
anyone know?