Hi, As suggested, i tried asking ActiveState guys but that didn't work. :( So i planned to ditch the ActiveState Perl :) and go with Cygwin's Perl. Again encountered a similar error as present in my first post so i thought of using 'perlrebase' as suggested by Reini. Still i am getting the same error message. :( Any suggestions? Thanks, Gaurav http://old.nabble.com/file/p32068639/perlrebase.sh_log.txt perlrebase.sh_log.txt http://old.nabble.com/file/p32068639/main_error_log.txt main_error_log.txt -- View this message in context: http://old.nabble.com/Error-when-Perl-calling-shell-scipt-using-Cygwin-%3E%3E%3E-c%3A%5Ccygwin%5Cbin%5Csh.exe%3A-***-fatal-error---couldn%27t-allocate-heap%2C-Win32-error-487-tp31714033p32068639.html Sent from the Cygwin list mailing list archive at Nabble.com. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple