what are the executable types on windows/cmd? and what are their priorities?

Question

For example if there are multiple executable files on the path i.e., a.exe, a.bat and user types \'a\' (enter), which file will execute?

What other executable format

Answer 1

Precedence is: DOSKEY Macro .COM .EXE .BAT

http://support.microsoft.com/kb/35284