>I pass two parameters to proc1. One has a value and the other is empty. In proc1 there is a "IF PARAMETERS() < 2" which produces an error message. On my machine it counts two parameters and no error message is produced. On another machine using the same executable, the error message is produced.
>
>Is there some oddity about PARAMETERS()?

There is... :)
Try to use PCOUNT() instead of "IF PARAMETERS() < 2"

Nick