For Windows and Windows NT, run the SQL Client Configuration Utility to determine which version of DB-Library is installed on your computer. This utility searches the path for the appropriate DLL to load (the path begins with the current directory). Run the utility from the same working directory as your application.
For MS-DOS, include a call to dbinit in your DB-Library for C application to determine which version of DB-Library for C is installed. This function returns the version number of DB-Library for C. It is a good idea to display this information in all your DB-Library applications.