xcopy /s/y J:\"My Name"\"FILES IN TRANSIT"\JOHN20101126\"Missing file"\Shapes.atc C:\"Documents and Settings"\"His name"\"Application Data"\Autodesk\"AutoCAD 2010"\"R18.0"\enu\Support\*.*"
..should do it.
Good idea to do an:
IF NOT EXIST "C:\Documents and Settings\His name\Application Data\Autodesk\AutoCAD 2010\R18.0\enu\Support\Shapes.atc" ECHO/ && ECHO/ && ECHO * * * * * COPY FAILED - Call JustME at 555-555-1212 && ECHO/ && pause
(assuming you've done a rename of previous version to .old)
XCOPY /Z <----- restartable mode - good for large files.