i have done the textchat application for that one i created the modeless dialog box. now my question is if i am talking with 5 persons means, 5 dialog boxed will be created and they will be minimed. now if one of the 5 persons send the message, that particular dialog box window should appear in blue color. when i used the commeand Setforegroundwindow() , the window is appearing as foreground in window NT, but in windows 2000 it is glowing in blue not coming as foreground window.now i want irrespective of the operating system, then window should be blinked in blue color not coming as front window. for that one which window i have to use.