Latest version is "Comet 1 beta 31 (2004-9-26)"
Comet is language binding between COM and C++. It allows you to do both COM client and COM server programming, without any dependency on either ATL or MFC. In other words Comet is a replacement for ATL.
To learn more read Introduction to Comet by Paul Hollingsworth (updated 26/1/2001).
You can download Comet and use it for free. However be aware that it is a work in progress. Don't be (too) surprised of bugs, and expect feature changes in the future.
If you have problems, questions, suggestions or otherwise please contact us at firstname.lastname@example.org. Your opinion is important to us, so please send us your comments.
There is a mailing list for Comet for discussing anything related to Comet. You can browse the archive here.