To have a messagebox like (without ok button) at startup in windows

Hello to all, I need a messageBox message like but without the ok button. This program should start at start up (see scheduled task on w2000) and stay there . The thing is util for advertise the user that sistem is upgrading ... Thanks in advance Giulio. NOTE:if it is possible in C,C++,vb. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform For W95,W98, Nt , W2000 XP