Допилил для 2ой задачи.
Вот >>
Код:

@echo off
setlocal enableextensions enabledelayedexpansion
set sSourceFolder=
set sDestFolder=
call :GetLastPartName "%sSourceFolder%"
call :GetTemporaryName
for /l %%i in (1, 1, 29) do (
xcopy.exe "%sSourceFolder%" "%sDestFolder%\%LastPartName:~0,-1%%%i\" /e /f /h /r /k /y
)
endlocal
PAUSE
rem ==========================================================================
rem ==========================================================================
:GetLastPartName
setlocal enableextensions enabledelayedexpansion
set sLastPart=%~nx1
set sProcName=%~0
endlocal & set %sProcName:~4%=%sLastPart%
exit /b 0
rem ==========================================================================
rem ==========================================================================
rem Функция GetTemporaryName()
rem
rem Серый форум / CMD/BAT: генерация пути для временного файла или папки
rem (http://forum.script-coding.com/viewtopic.php?id=6259)
rem ==========================================================================
:GetTemporaryName
setlocal enableextensions enabledelayedexpansion
:NextName
set sTempName=%temp%\temp%random%.tmp
if exist "%sTempName%" goto :NextName
set sProcName=%~0
endlocal & set %sProcName:~4%=%sTempName%
exit /b 0
rem ==========================================================================
Вроде всё порядком.
Кривоватое решение для первой задачи (слегка изменил строку с мклинк):
Код:

rem echo mklink.exe /d "%sDestFolder%\%LastPartName:~0,-1%%%i\%sExcludeFolder%" "%sSourceFolder%\%sExcludeFolder%"
cd "%sDestFolder%\%LastPartName:~0,-1%%%i"
mklink /d %sExcludeFolder% "%sSourceFolder%\%sExcludeFolder%"
Пашет только с отрабатыванием из копированной папки.