FAQs

This error message signifies a registration problem, most likely due to an error in your csd_licence.dat file (usually located in the CSD installation directory) that is used by the ConQuest, Mogul and Mercury to store your registration information. When any one of the programmes first starts, it generates a serial number which is then used to generate a validation code. When you start a ConQuest search, the search routine also generates a serial number (by the same route as ConQuest) and checks that this matches the validation code stored in csd_licence.dat file. If the serial number does not match the validation code, ConQuest will not start a search.

It is therefore likely that the csd_licence.dat file is faulty. The simplest solution is to delete the csd_licence.dat file and re-register (this will not use additional licences if ConQuest, Mogul or Mercury have previously been registered on that computer). If this does not solve the problem, please send the csd_licence.dat file to support@ccdc.cam.ac.uk, who should be able to help further.
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