>>I'm wondering if this is possible from the WEB application to detect if there is an association for WAV file on a client computer.
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>In order to do that, you need some kind of ActiveX control. And, that would require the user to accept it, which is something pratically all would refuse now.
Are you sure there is no other alternative? On the other hand, if there would be, it means that there is absolutely no security.
If it's not broken, fix it until it is.
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