Did you change to the \LANDesk\ManagementSuite\amtprov directory first? There are a couple amtprov directories, so make sure you are in that one specifically. Also look in \LANDESK\ManagementSuite\amtprov\amtprov\certgenerator\clientsecscripts. Make sure there is a csr_gen.bat file as well as a yy.txt file. The yy.txt file should contain two letter 'y's each on their own line.