Creates multi-threaded copies with N threads. N must be an integer between 1 and 128.
The default value for N is 8.
The /MT parameter applies to Windows Server 2008 R2 and Windows 7.
1) It seems to me "The default value for N is 8" applies Only if you actually use /MT and omit [:N]
i.e. without /MT on cmdline Robocopy will not "Create multi-threaded copies with 8 threads" (= will just use 1 copy thread)?
2) Are you sure Vista version of Robocopy have /MT switch? ("Note: The /MT parameter applies to Windows Server 2008 R2 and Windows 7")
Subject Re: Re: Bug report - Robocopy 5.1.2600.26 for XP do Not support /MT:1 switch