remote printing from php script

Hello Listers, I wish to print a file on a remote printer that is a queue on a Novell server. The print command is coming from an exec() function in a php3 script running under IIS on an NT 4 server. If I run the script from a dos prompt at the server, the file is printed to the Novell queue, but if the php3 script is 'run' from a web page it does not print. I have also tried the using the 'system()' function with the same result. By altering the php script, I can make the output go to a printer attached to the server's lpt1 port, so I know the syntax is OK. I have tried the 'net use lpt2 \\server\print_queue ' command both in the windows registry and in a batch file (see below) to send the output to the queue. I have also tried putting the print and net use commands in a batch file and run that from php3. Maybe someone can see a better approach or has done something like this before. Cheers KIM