I was wondering if this was possible/what control I could use to do this.

I have a Word document that has special strings in it that I need
to replace based on which user logs onto the website. Then I want
to display that Word document on the website with the full Office
functionality. Then when the user saves the file it will save on
the server. All this needs to happen with no download or upload dialog
appearing.

The file will be stored in a static location on the server so the user
does not know where that is anyway. Same with the location of the word
document with the special strings.

I know this is possible if i user a WYSIWYG editor and save the files as
.rtf, but they want .docs. I also have not seen an editor that supports
headers, footers, and other Office functionalities. I am able to save the
word document as an XML, then replace the special strings, and then spit that
out to the user. The problem with that is that if the user wants to
edit the file and place it back they have to save it on their computer
and then re-upload it and my clients do not want that.

I am using C# and it is a web app.

thanks
Michael Hsu