[dba-Tech] Run as Administrator

OS: Windows 7 Ultimate, 64-bit.

Now and then I run into a problem when trying to install some package. I'm
told I must run it as Administrator. My normal login is Arthur, who has
Admin privileges. So I don't understand what the problem is. There's no
icon for Administrator so I don't know how to log in as him. On the
particular file I'm trying to install (the latest Apache from the MSI
file), when I right-click, there's no option for "Run as Administrator."

During the installation, I am asked for domain. I don't have a registered
DNS. Can I enter just anything? I am also asked for server name. I have
been entered my ID address. Is that correct?

Then I get this error message in a CMD window:

An attempt was made to access a socket in a way forbidden by its access
permissions.
: make_sock: could not bind to address 0.0.0.0
No listening sockets available, shutting down
Unable to open logs

For the moment, I've uninstalled the program. Any suggestions gratefully
accepted.

-- 
Arthur
Cell: 647.710.1314

Prediction is difficult, especially of the future.
  -- Niels Bohr