Batch string replace

[JGAndrew]

I have a variable like this\[code\]"Folder With Spaces/filename.ext"\[/code\]When I pass it to my program via PHP's system command, arguments are separated by spaces\[code\]system("batch.bat Folder With Spaces/filename.ext");\[/code\]So I have it like this\[code\]system("batch.bat Folder_With_Spaces/filename.ext");\[/code\]Is there a way now that it is back in the batch program to replace the \[code\]_\[/code\]'s with \[code\]\[/code\]'s