Our antivirus software didn't allow me to copy an EXE file into my Windows 7 startup folder (calc.exe for example) since it's an EXE file
So I renamed it to a COM file and then copied it and it allowed it (very professional).
And of course -
calc.com does work.
Which led me to ask (only for curiosity):
When will an EXE program not run when renamed to COM ? Almost every exe file that I've checked worked.
I'd love to know the internals for why and why not.