I had the exact same issue on a client's computer. I tried a bunch of different fixes but this is what ended up working.
My client's company files were stored in c:\users\<username>\Documents\quickbooks.
I created a zipped copy of that folder just in case.
I then renamed it to OLDquickbooks and created a new quickbooks directory in the same location.
I then moved all the .QBW company files from OLDquickbooks to the new quickbooks directory.
Quickbooks stopped crashing after that.
It seems Quickbooks was having trouble opening some of the companion files it creates for each company file. (ex. .nd files).
I hope this helps someone...
Chava
