Calling Rand (-1) at the application startup should be enough. Rand () just need a seed value to get started, otherwise it would generate the same set of values.

HTH

>I have an application that is using rand() to in more than on location in the program. The docs say:
>
>To achieve the most random sequence of numbers, issue RAND( ) initially with a negative argument and then issue RAND( ) without an argument.
>
>This application runs 24/7. Should I call rand(-1) when I first load the application or should I call rand(-1) each time before I generate a random number?