You will need to copy the PRINTUPG.INF file to your WinNT/inf folder first (replace the existing file). Then install the printer through the ADD PRINTER wizard. Select have disk and point to the location that you unzipped the file package. That is it. One downside is that you can not align the print heads with the printer subsystem crashing. This procedure worked for me and I print to the BJC-5100 under W2K. Hope it works for everybody else.