Fisher has become a MS Windows ONLY company. They are phasing out Unix and VMS versions of their CHIP software. CHIP is a C library used to develop programs that communicate with Provox devices on a Provox DCS network. I want to be able to develop and run programs on Linux that read/write data to Provox devices. But Fisher is adamantly opposed to Linux so there is virtually no chance that there will ever be a version of CHIP for Linux. Fisher doesn't provide the HDL protocol that would enable users to develop such a package for themselves. However there are vendors (ex TIPS/PROdirect) that have developed software having this capability, so the protocol must be available somewhere. I'd like to try developing my own package but I don't know where to find information on the HDL protocol. Can any one out there help?