While Tandem Computers Inc last week deferred all questions about its 64-bit Unix plans to the MIPS Application Binary Interface group, mirroring the experience of other vendors, the R-Series RISC supporters club says it has had no official participation in the Intel Corp-Hewlett-Packard Co-driven Unix applications programming interface initiative known as the Aspen process. The group’s goal was to have one of its people represent all of the MIPS Binary Interface member companies, but that has not happened. There have been conversations between various ABI members and Aspen, it says; and one way or another, we hope this matter is resolved shortly. The Aspen folk could not be reached for comment.