>Its very bad to have messagebox behind some windows app...i have this behavior in past.
>to get messagebox as a top of all windows try this syntax
>

>messagebox("what wanting....",0+32+4096)
>

>read this MS page:https://msdn.microsoft.com/en-us/library/aa445082(v=vs.60).aspx
>vbSystemModal 4096 System modal; all applications are suspended until the user responds to the message box.


Think you better use 65536 ( Specifies the message box window as the foreground window)