Keith
It could be an xll add-in - try searching for *.xll on your local drive for
anything you recognise
or it could be an xla - try a similar serach
Or it could be a COM add-in
of which they are 2 types
user specific - right click in the menu area, then on the commands tab of
the customize box click tool, look down the left to COM Add-ins and drag
that button into a toolbar somewhere. Then click it and see if there are any
add-ins listed, if not, read on
Machine specific COM add-ins can only be checked for directly in the
registry see here for where/how (item 7):
http://www.cpearson.com/excel/StartupErrors.htm

cheers
Simon

Blog: www.smurfonspreadsheets.net
Website: www.codematic.net Excel development, support and training

"Keith" wrote in message
...
We have a vendor-provided corporate application that is integrated into
our Offce 2003 suite (database queries behind the scenes, etc.). The part
of the application that I see is a toolbar in Excel (all machines are
WinXP). Unfortunately, their program is poorly written, and does things
like hide commandbuttons in other workbooks, etc.

When I go into Excel View/Toolbars and click to suppress viewing the
toolbar, it goes away...but the next time Excel is opened, the toolbar
comes back (is automatically visible again). Of course, the presence of
the toolbar itself isn't likely to cause the commandbuttons in other
workbooks to dissapear, but I figure if I can find the code that is
auto-showing the toolbar, I might find the rest of the code as well.

I didn't find any add-ins, nor any files in any startup folders (at least
anywhere I could think of).

So, if you wanted to tick off your customers by figuring out a way to make
a toolbar visible every time Excel starts, how would you do it? I'm asking
because I want to use your ideas to work backwards and figure out where
their code is, so I can figure out a workaround. It is possible that they
might be using some .NET code somewhere that puts the toolbar back anytime
Excel opens, but I wouldn't even know where to look for something like
that if the code isn't in Excel itself. There might also be other
directories where some sort of very hidden add-in might be located that I
don't know about, so any ideas would be greatly appreciated.

Many thanks,
Keith