Harry,With 'LPT1 = "PDFtoPrinter.exe" #LPT1.PDF' in CONFIG.TXT, the only XyWrite command you should have to use is TY. Also, why would you issue a bare *Windows* command from the Xy command line? At a minimum you would need to prepend DOS/NV/Z /C ....I was able to print by dropping the file on the program icon, but not from the Xy command line using PDFtoPrinter filename.pdf (I get "Command is not recognized").-- Carl Distefano cld@xxxxxxxx