When you direct reports from NPL III to a DMP connected via device-name .DMP and NPL seems to refuse this name after the C>DISK:, you must revise the driver file of CONSOLE:, SILENTYPE:, PRINTER:, and DISK:. NPL III is written in Pascal. Pascal scans the drives when it boots and assigns unit numbers depending on the type and order in which they are loaded. Assuming you are using the diskettes, delete the .PRINTER driver from the driver file and add your .DMP driver. Rename .DMP to .PRINTER. If you are using Catalyst, you'll have to arrange the drivers so that the Pascal Filer's 'Volumes' command shows .DMP as Unit #6.