Clipper simply prints to lpt1. It is, therefore, essential that you have lpt1 up and working. If you can run "copy filename lpt1" and it prints file name, you have lpt1 working and clipper programs will then work.
If you are on a network, ask your system administrator to set up lpt1 for you through your login script so that it is available each time you login.
If you are on a windows net work you can use somebody elses printer, if he/she lets you and shares the printer, by using the control panel to set up a new printer connection to that printer and capturing the printer port to that printer.
Subra if you find this useful let me know at vksubra@usa.net