TeXworks for Windows
TeXworks (MikTeX) is included in the Windows distribution at UiO. You can download it here: http://www.miktex.org/
Select Preferences in the Edit menu.
Under the Editor tab: select UTF-8 as Encoding:
Select the "Typesetting" tab. In the "Processing tools" frame: select BibTeX and click the "Edit" button on the right:
Then fill in the form as follows::
In some cases the biber program is not located as shown. Use the Browse button to locate it. Normally it is included in the MikTeX distribution.