THis is probably a dumb question but what's a VSTO?

"Jon Peltier" wrote:

I had this problem a few months ago, and when I uninstalled a program that
accessed Excel via VSTO, the phantom VB Projects disappeared. I read more
recently that another user solved his problem by removing a different VSTO
program. To me, it seems obvious that VSTO is the culprit, and I think
that's what you should look for.

- Jon
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Jon Peltier, Microsoft Excel MVP
Tutorials and Custom Solutions
http://PeltierTech.com
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"MikeZz" wrote in message
...
I've been having issues with the VBE project window.
When I first open excel VBE, it's pretty clean.
But if I open a file, then close it, the VBE project does not close.
Then if I reopen the same file, I have 2 identical projects open.

Is there a setting that will close the VBE project when the excel file is
closed?

It's getting to the point where I don't know which one to work in and I've
lost Hours of work because I saved what I thought was the right file but
for
some reason it didn't save the VBE code to the excel file. It must have
saved it to the phantom file which must not have existed.

Thanks for the help!