Apache Question:

SSL (Secure Socket Layer) data transport requires
encryption, and many governments have restrictions upon the
import, export, and use of encryption technology.

If Apache included SSL in the base package, its
distribution would involve all sorts of legal and
bureaucratic issues, and it would no longer be freely
available.

Also, some of the technology required to talk to current
clients using SSL is patented by RSA Data Security, who
restricts its use without a license.