Open Folder Location or File on a button click

Hello Experts,

I have a webform that's hosted on our webserver.  The web form allows the user to save out files to a folder that lives in the directory where the application is hosted.  This is all working.

What I need is:
A button with the ability to open Windows explorer to the location of the folder.
A button with the ability to open a particular file in that folder.  (It's a word file)

I'd really need server-side code for this, and would prefer to use a button over a hyperlink.

Thanks!
Moe