how to show message box on top of all opened forms [ in vb.net ActiveX on browser ]

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VB

MessageBox

Hello,

i had created an activex dll in vb.net and im using this in my web application. using that activex im downloading the document from the server , processing it in the local machine and saving back to the server during closing the word document.

whenever the user close the word document, im generating an alter message to ask whether to save it in the server or not. My problem is message box is showing behind the word document and the user cannot see it. how can i bring the messagebox on the top of the word document i opened using the activex ?

Thanks in advance
Yuvaraj