Hi all, Sorry for my english, I'm french. I have some problem running an xcopy command with paths that contains spaces. I'm trying that : output = `cmd /c xcopy /r /y \"C:/Test A\" \"C:/Test B\"` Xcopy doesn't return any error but don't transfer files from "Test A" to "Test B". If I rename those paths without spaces and double quotes, it works : output = `cmd /c xcopy /r /y C:/TestA C:/Test B` Could someone can explain this issue ? Or can tell me a better way to do fast copy files under Windows and get back a list of files tha was transfered ? Copying files with ruby is less faster than running an xcopy command. Is it always true ? Thanks all for you're help to a french guy ;) David