OCI TAO is the open source distribution of the ACE and TAO C++ frameworks commercially supported by Object Computing, Inc.
Source code for OCI TAO is available here.
For more information about OCI TAO, see the OCI TAO website and Object Computing's TAO page.
The upstream repository for ACE and TAO is on GitHub.
See Douglas C. Schmidt's website for more information about ACE/TAO.
ACE is a C++ framework for implementing distributed and networked applications, TAO is a C++ implementation of the OMG's CORBA standard. The main home page is here. Mailing lists are available here and the Bugzilla for issues is here.