Hentzen - 2012-02-01

Recently I reinstalled XP/sp3  and upgraded from    regina33   to   regina36w32,   Windows .cmd files that used to work are now giving "The syntax is incorrect  rc=1" . I can circumvent the problem by renaming the .cmd file to .bat     In my old
XP/Regina environment the  'system'  could handle both  Regina and WindowsXP .cmd files. Do I have a WindowsXP or
a Regina problen and how can I solve it

Thanks