Web Forms :: How To Open Microsoft Office Word File From A Button Click In Aspx Page Using C#

i have an aspx page with one button on it the name of the page is Default.aspx

i have a physical microsoft office word file in the c drive

what i want to do is that when i press a button i open a microsoft office word located on the c drive then i add some text to it using c# code

then i want to open the file (that i edited and located in memory) in mircosoft office word to see the text that i have added

everything works fine but when i press the button i get a prompt that says do you want to open the file or save it .

questions:

so how can i directly open the file (located in memory) in microsoft office word without this prompt

also if i choose open from the prompt the file opens in the read only mode and the title of the file in the microsoft word become the name of the aspx page which is Default.aspx

so what is going wrong here

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