ACDK Tcl allows you to instrument a Tcl interpreter inside an ACDK application. In the Tcl script, you can call all ACDK classes with the standard ACDK Dynamic Method Invokation (DMI) methods.
OSE provides a framework for building event driven systems, Web-based services, and distributed applications using C++ and Python. A HTTP servlet framework is included, and separate gateways for XML-RPC and SOAP protocols are also available.
A database pooling and load balancing system.
The Slackware distribution