Hi John;

>What is the preferred method of running another program and waiting for it to complete. TIA

There is no preferred method for this. But, there is a usual behavior to run programs under a CLICK METHOD of a command buttom. If you want to stop the execution of your program just do something like:

DO FORM MYFORM WITH A,B,..,N

'MYFORM' must be windowtype property seted to MODAL and in the init method:

procedure init
parameters a,b,..,N        && how many you want

endproc

Claudio