File tested: cmd.exe (reactos-bootcd-0.4.15-dev-537-g35de9f3-x86)
Steps to reproduce the error:
1. Start ReactOS or Windows XP.
2. Run ReactOS CMD.
3. Run a batch with this content:
Expected result with the Windows CMD: Finishes with 4 lines written.
Result in ReactOS with the ReactOS CMD: A typing infinite loop of the string start. The system is not able to handle with it, mostly freeze in the loop.
Result in XP-SP3 with the ReactOS CMD: A typing infinite loop of the string start. The system is continuing the loop until you got null space.