On 2011-02-28 4:32 AM, Stefan Monnier wrote:
>> On Windows 7 (64-bit mod), run M-x shell, and try to do any filename
>> expansion.  All backslashes (even
>> manually typed!) are converted to forward slashes upon tab-expansion.
>
> Yes, that's the expected behavior.  Could you explain why it's
> a problem?
>
It is a problem because commands built in to cmd.exe (and also external 
commands) interpret slash as a command-line switch character.  So you 
end up with the following situation:

--> comint expanded \ to / : del ../lpeg-0.10.2/re.html
Invalid switch - "lpeg-0.10.2".

In short, it breaks all native windows command-line tools.

Best regards,
   Zeljko.