Does anybody know what the charges might be to support a bespoke software application. The particular application I am thinking of typically does not generate more than one call per year. However the provider must be available to take a call, maintain the knowlegebase, be available to answer questions, and, if required, make changes. If the original s/w cost was in the region of 60k, is there an industry standard for what the software house might charge, given the low support demand.