Hi..am trying to zip the files in windows server and trying to copy that zip folder from windows server to unix server using this command # system ("wzzip -a c:\\SSTUD\\Wfiles\\ftp\\$file");. It was working fine till last week. This week we moved the files from another windows server and its showing the error ''wzzip' is not recognized as an internal or external command,'. The only difference is in old windows server winzip 11.2 was installed and in the in the new windows server winzip 12.1 is installed. Could you please help on what will be the issue for this ?