Here is an enormous list of free and open source programs for Windows.
Posted by among others, http://journals.aol.com/johnmscalzi/bytheway/entries/5543
The list is here:
Posted by justhamade at www.listible.com, it's got stuff I've never heard of. Notable in my opinion:
IrfanView 3.98 -- great for viewing and batch converting your digital photos and much more.
- Juice 2.2 for podcasts (reminds me, I so need to do one)
- GMail Drive 1.0.9 GMail Drive creates a virtual filesystem on top of your Google Gmail account and enables you to save and retrieve files stored on your Gmail account directly from inside Windows Explorer, and thus use your Gmail account as a file storage medium.
- WinPooch 0.5.9 For trojans or spyware
- CDex CD ripping and audio encoding software.
If you have something to add, you can add it to the list.
(Equal time for Linux--Ubuntu ships out FREE CDs of their Easy Breezy Badger Linux operating system. Free, as in no shipping charges. Order some today. )