Download unknown files

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VB

Hi,
i am having issue with files downloading...if we want down load files from server
it shows us about open , save,cancel..

if we download unknown files then it shows find ,save,cancel

if we click find then it will redirect to browser...i need to control find option..i dont need find option....for unknown files also i need open save cancel..

this is serious issue..i need in urgency to my project....

Thanks in advance