Automatic ontape

Hi, I have informix 9.40.TC4 on Windows 2000 and I would like to automate the ontape. I have created a batch file as follows: cd C:\\Program Files\\Informix echo ol_ctseu11.cmd ontape -s -L 0 When I run the batch file it returns the following: Please mount tape 1 on E:\\DBBackup\\backup.txt and press Return to continue ... Then it waits until I press enter in order to continue. How can I modify the script so that it starts the backup automatically without displaying the follwing: Please mount tape 1 on E:\\DBBackup\\backup.txt and press Return to continue ... Thanks, Vasilis