The libcom COM Support Library version 0.4.0 has been released. This is the first release of libcom. libcom is licensed under the LGPL.
libcom implements a subset of Microsoft COM (Component Object Model) and supports both C++ and C# (via Mono) COM clients and servers on Linux. libcom is similar to ole32.dll in Windows.
libcom can be downloaded from http://linux.lsdev.sil.org/wiki/index.php/Downloads.
Update: libcom now has its own web page at http://linux.lsdev.sil.org/wiki/index.php/Libcom.