IMPORTANT NOTES:

(1) The anti-virus software "Threatfire" which is available standalone and as part of the PC-Tools suite will cause 508 errors if its service is running while a protection check is made.  The only solution at present is to disable the Threatfire service from Control Panel / Administrative tools.  Version 50 avoids this problem.  The normal automatic upgrade of the .cm file will not work as the error prevents the new .cm file from being saved. If the Threatfire service is disabled then the protected program will run correctly and can upgrade itself.

(2) This error can also occur if using Advanced Runtime Protection with the shell method on versions of the .cm file prior to 47.  In this case the user must be provided with a new copy of the protected program and .cm file using cm file version 47 or later.  The normal automatic upgrade of the .cm file will not work as the error prevents the new .cm file from being saved.