>>It's probably custom error. Many developers used to create a table which holds some settings and call it configuration table/database (I do it too).
>
>Hi Edward
>You are right, the problem was that the person that created the software hardcoded a select from drive M:\table name
>
>Thanks

You could map or SUBST the proper directory to point to M: drive, in case you find the table; if you don't have it, ...pray? Hex dump the exe and look for the table name, hoping to find the fields' names (and, hopefully, types)? Call it unrecoverable and sell them a new app?