i constated it is impossible to open files with names containing spaces in it.

for exemple:

open CPUID mem.asm

CPUID could not be found
mem.asm could not be found

it may be interresting to accept spaces in fil names. and folder names too.
i am pretty sure it is not a diffficult trick to do.

does not quotes help?
+++++++++++
from other side what a great sense in filenames with spaces?

open=file? Yet, "file" needs quoted strings, otherwise "Error: invalid argument."

windows and mainly, all M$ stuff sucks, like monsanto stuff!