'Copying software'? Well, no, I'm not aware of Microsoft's long history of doing this. Surely you don't count Excel as a 'copy' of VisiCalc or Lotus 123 right?
Here are a couple of links I found with a quick googling:
http://www.kmfms.com/whatsbad.html
http://web.archive.org/web/20071215231524/http://www.vcnet.c...
The second tries to document every company destroyed by MS and how.