In 1987 I developed a program "GASPROP" calculating the properties of chemical gases and gas mixtures e.g. LPG and LNG. I used the MBK ProfiSet to accumulate the large program including using the special functions provided by the ProfiSet. The program was stored on a EPROM which was soled at the time. 30 years later I have made the program including leaflet, manual and program listing available to HP41.org for publishing. Now I am looking for someone with the capability to turn the EPROM content into a MOD file so it can be used with the go41cx or i41cx and published in the HP41 library. As suggested by Warren Furlow I am asking the HP41 community for help. I will provide the EPROM and all information I have (excluding the ProfiSet, which I lost in a company transfer) to someone with the technical equipment and skill set and willingness to take on the challenge.