I see a feature(forward and backward search) of Texworks, when I build the PDF document, I can click on the PDF(opened in Texworks), and select "Jump to source", then it will take me to the latex source associated with the current PDF view. Also when I click on some tex source, and click the context menu "Jump to PDF", it will take me to PDF, quick nice.
BTW: I'm using Miktex 2.9 portable edition.