What language are you using? If it's LabVIEW, it's easy to write your own popup but you can use the Prompt User for Input Express VI on the Dialog and User Input palette. You really be posting questions like this to the appropriate language board. It has absolutely nothing to do with DAQ.
Hi, Please be sure to post your questions on the relevant board specific to your language and issue, as noted this isn't related to DAQ at all. Thanks,