I have a new 6 min 31 sec training webcast up over developing windows services.  This video looks at how to build widows services as well as an approach for easily developing them with “console application” support to help ease development.  It can be a pain to develop a windows service, if you have to constantly keep deploying it just to test it out.

The video is available through JupiterMedia and can be viewed at http://www.internet.com/video/. Just look for the "Developer Video" titled "Developing Windows Services".

Direct links are:
http://link.brightcove.com/services/link/bcpid1431564240/bclid1433966034/bctid10347017001