I've just finished listing a bunch of HP computer and software manuals on E-bay. A lot of the manuals cover HP-UX and are likly to be applicable to the IPC. Don't just go by the titles, look through the HP-UX manuals to see which one you think are applicable. Also listed HP pascal and Fortran manuals and a DATA I?O Setsite module for the Unisite programmer. see <http://cgi6.ebay.com/ws/eBayISAPI.dll?ViewSellersOtherItems&userid=rigdonj> if interested. Joe