Does the printer show up in the Windows Printers folder? We've used PDF995 or Cute pdfwriter for years. All of these create virtual windows printers. When you print to them, a dialog box pops up asking for the filename for the pdf. If you have Activex calls to Excel in order to open a file, you should be able to make ActiveX calls to print it to a print driver such as this. I don't know if any of these drives have a way to bypass the filename dialog box. That may take some research and experimentation. I don't know where the postscript file comes into play in the scenario you are describing.