search and replace from .bat file ??

I started in the Macintosh world and moved to the Linux world.
I run Windows 7 Pro on my laptop and it is first Windows release I actually like, MS did a good job. But I know next to nothing about Windows scripting.

I'm looking for a Windows equivalent to sed on *nix systems. Basically what I am trying to do is from a batch file, the equivalent of

Code:

sed -e s/"^%\\\printdoctrue"/"\\\printdoctrue"/ < foo.tex > bar.tex

Does anyone know how to do this from batch file in Windows 7 pro?

What it does for those who don't know sed, it reads the file foo.tex and searches for the first occurrence of the string %\printdoctrue changing it to \printdoctrue in a file called bar.tex (creating it or overwriting it)

Thanks for suggestions.

 

SED is available for Windows too. Even if it is not "on board" you'll find it in the internet.