Scott Rouse (Southwest Fndn Biomed Res, San Antonio, TX, srouse@icarus.sfbr.org) has found a way to transfer the HP Pascal program HPPCLINK.CODE via Internet to a PC to a diskette readable in the HP computer. This avoids having to snail-mail a diskette whenever someone needs this or any other public domain HP program. Here is the procedure. HPPCLINK.CODE is the HP program to send e.g. FCS listmode files out the IEEE-488 GPIB bus to a PC card, hence to a PC, at a practical speed (unlike the serial port method). You need a GPIB IEEE-488 inteface card in your PC (about $500). For more info see http://www.bio.umass.edu/mcbfacs/flowcat.html. 1. Get a DSDD 3 and 1/2 inch floppy diskette (see below if you prefer an HD diskette). When you face the label-side, with the metal sliding cover at the bottom, this kind of diskette has a square hole in the upper right corner (with a black plastic slider to open for write-protection -- leave that closed). It has no hole at all in the upper left corner. (Disks with a hole in the upper left corner are HD, high density.) 2. Format this diskette in your HP 9153C diskette drive under Pascal 3.1 by eXecuting MEDIAINIT. Specify option 16, and accept the default interleave value of 1. (Option 16 is undocumented. It produces an "IBM format" diskette with 80 tracks, vs. option 2 which makes 77 tracks.) 3. Use the above web address, or anonymous ftp to marlin.bio.umass.edu to get the file /pub/flowcyt/hp2pc/x2ff10lk.exe. Run this on a PC and it will self-extract into some programs and data files containing the HP disk image of HPPCLINK.CODE. 4. Put the HP-formatted diskette in your PC drive, and run 'X2FLOPPY HPPCLKDD.HPI'. Specify appropriate drive letter (A or B), bytes per sector 512, sectors per track 9, and tracks 80. 5. If the copy is successfully completed, put the diskette in your HP and it should contain HPPCLINK.CODE among other things. See if you can eXecute it! If it doesn't work, try another diskette, or another PC. Be persistent and it will work. For an HD diskette: Follow the same steps, but in step #4 'X2FLOPPY HPPCLKHD.HPI', and use 18 instead of 9 sectors per track. You can of course get the PC side of the software, HPPCLINK.EXE, from the above web site. We believe that the HPPCLINK.CODE in these HPI files, which is from an HP 310 Pascal 3.1 system, will also execute on an HP340 Pascal 3.2 system. However, HP 340's have an ethernet port built in, which with TCP/IP software (see below) would provide much faster transfer than HPPCLINK via GPIB. (The Pascal source code for HPPCLINK in not in my possession.) Thanks to Neal Benson and Richard Allen Cox for some of the information in this document. Richard's company Flow Cytometry Support can support HP computers and related technical issues, and can supply TCP/IP software for HP340's. It is at POB 3450, Saratoga CA 95070-1450, 408-370-6327 (FAX 6487), racox@hooked.net, http://www.hooked.net/users/racox/fcs.htm. Eric Martz, emartz@microbio.umass.edu, 5/20/96