Hi: I always do this work like this: 1. if the number of parameter is not too many, I create some properties of the form, save the value of parameter in these properties; 2. if I have lots of parameters to return, I will save all of them in an array which is a property of the form; 3. I use 'thisform.hide()' instead of 'thisform.release()'; 4. when control handle is back to main program, I can get the value of properties from the form, then release it. Hangzhou