[gora]

Код:

@Echo Off
SetLocal EnableDelayedExpansion
Set file=E:\Temp 1\paths.txt
Set newfile=E:\Temp 1\paths1.txt

For /F "tokens=* usebackq delims=" %%i In ("%file%") Do (
	Set ti=%%i
	Echo !ti:/=\!
)>"%newfile%"