PCS7 WinCC popup window

[tashinz]

I want to open a pop up in WinCC 7.0 (of PCS7) when a certain flag turns 1. but this shouldn't be a pop up as a window object on some base screen which can be open only when that base screen is opened and closed when the base screen close, it should open on whatever screen operator is. so, i defined a global script, which is triggered by a boolean flag, e.g. prod_completed, and in c-script I use SSMOpenTopFieldFixedSize command which basically opens a window objects @top10, @top11...@top20 on underlaying system screen @1001.pdl. ok it works on the server and the redundant server, but it's not working on two client machines. any solution? also, if anyone has a different way of opening a simple pop-up window, please, share with us.