In Windows, the devices like "COM" and "PRT" are presented as if they
exist in every directory. (A hold-over from the days when there were
different system calls to access these devices, and hence had the names
It's possible that if your cwd is on a networked drive that isn't mapped
to a drive letter, the "com" device doesn't exist in that directory. You
might need to use the fully-qualified name to access it. (Said
fully-qualified name might not be obvious, however.)
Darren New / San Diego, CA, USA (PST)
"That's pretty. Where is it?"
"We should go there on vacation."