Question about the NUL parameter - China DOS Union Forum - China DOS Union

What I made is a stripped-down XP, namely XP EMBEDDED. In this system, if I run commands that themselves include the nul parameter, it always says “The system cannot find the file specified,” and none of the commands can run. After removing the NUL parameter, the commands can run normally!
It feels like maybe I left out some files when trimming down the system. I know NUL is the null device in DOS, but I don’t know which file it corresponds to. If any expert here is familiar with this, please help explain it... many thanks!

Floor1　ek1881	Posted 2010-05-21 01:38
新手上路　Posts 4　Credits 16
What I made is a stripped-down XP, namely XP EMBEDDED. In this system, if I run commands that themselves include the nul parameter, it always says “The system cannot find the file specified,” and none of the commands can run. After removing the NUL parameter, the commands can run normally! It feels like maybe I left out some files when trimming down the system. I know NUL is the null device in DOS, but I don’t know which file it corresponds to. If any expert here is familiar with this, please help explain it... many thanks!