So, when doing LaTeX, it is absolutely necessary for ones sanity to using a preview program which updates automatically every time you compile. Of course, any previewer designed for DVIs will do this, but as far I can tell, Adobe Acrobat not only does not automatically update, but will not let you change the PDF with it open. 


On a Mac one can get around this by using Skim, and on \*nix by using xpdf, but what should one do on Windows?



Automatically updating PDF reader for Windows
Use [SumatraPDF](http://blog.kowalczyk.info/software/sumatrapdf/index.html). It is a lightweight pdf viewer which updates automatically. It also allows syncing with [TeXnicCenter](http://transact.dl.sourceforge.net/project/texniccenter/Tutorials/How_to_Sumatra_EN_%282009.09.23%29.pdf) and [WinEdt](http://robjhyndman.com/researchtips/synchronizing-winedt-and-pdf-files/).


