For the longest time I have been using Actipro Code Highlighter to do my code highlighting for my blog posts. It is free and it does an awesome job. Lately I have been using a Live Writer plugin written by Douglas Stockwell. Now it is as easy as copy my code in visual studio and pasting it into Live Writer (with the use of a menu item).

Just download the zip file and extract it to your Windows Live Writer plugins directory, and you are off to the races. Thanks Doug.