Lutz Roeder's Compact Library
- A simple class library for developing software components based on COM. Compact is usable with Visual C++ and provides the same basic mechanisms for interface handling and Automation like the ATL or the MFC.
- http://www.aisto.com/roeder/com/

Comet
- 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.
- http://www.lambdasoft.dk/comet/