$Source = CHR(34)+"C:\source dir"+CHR(34)
$Destination =CHR(34)+"C:\destination dir"+CHR(34)
SHELL "%COMSPEC% /e:1024 /c ROBOCOPY.EXE $source $destination /E /MOVE /r:2 /w:2"


CHR(34) is ASCII for the double quotes

Hope this helps,
Chris