RubyStack: Apache service not starting

Hello,

I've just installed the RubyStack on my windows machine (Windows 7, 64 bit). It seems that the installation process was successfull, but the browser cannot establish a connection to localhost.

So I checked the status of the application services and Apache Web Server is stopped. The attempt to start the Apache via manager tool causes an error after a few moments ... the Application log shows the following:

Starting Apache Web Server...

Exit code: 1

Stdout:

Stderr:
Unable to start apache

Edit:

I've checked the windows event protocol and it shows the following errors:

1. Origin: Apache Service: The Apache service named reported the following error: >>> (OS 10013)Access to a socket was inadmissible because of the permissions of the socket. : make_sock: unable to listen for connections on address 0.0.0.0:80.
2. Origin: Apache Service: The Apache service named reported the following error: >>> no listening sockets available, shutting down
3. Origin: Apache Service: The Apache service named reported the following error: >>> Unable to open logs .
4. Origin: Service Control Manager: The service "rubystackApache" terminated with service-specific error: Incorrect function ..

Has anybody an idea what went wrong here?

Thank you, Dennis