Wampserver installation, from install, the wampserver manager runs and the 'W' in tray is green, update the config files and Wampserver no longer works.

I have installed Visual Studio 2012.

I downloaded wampserver(ws) and installed it.

When the ws installation finished the ws manager runs and the 'W' in the tray turns green.

I update the php.ini and httpd,conf with these amendments

1      Open php.ini in Notepad
2      Search for doc_root
3      Set doc_root to:-
                  doc_root = "C:\wamp\bin\apache\apache2..4.2\htdocs"
4      set extension_dir to:-
                  extension_dir "C:\wamp\bin\php\php5.4.3\ext"
5      set mysqli values
                  php_mysqli.dll
                  ;php_mysql.dll
6      set session.save_path
                 session.save_path = "C:\Windows\Temp"
7               Save and close php.ini

8      Run Notepad as administrator
                 Navigate to C:\wamp\bin\apache\apache2.4.2\conf\httpd.conf
                set DirectoryIndex
                DirectoryIndex index.php index.php3 index.html index.htm
9             Goto end of httpd.conf  
               Add these lines
               LoadModule php5_module "C:/wamp/bin/php/php5.4.3/php5apache2_4.dll"
               AddType application/x-httpd-php .php
               PHPInidIR "c:/wamp/bin/php/php5.4.3"

I run the ws manager and the 'W' in the tray is orange.

I have undone the above and the 'W' is still orange.

I am having trouble getting localhost to work, I get a message saying the file can't be displayed.

I have installed Visual Studio 2012 and VC++ 2012 runtimes from AVG and ws recommends the installation of VC++ 2010 runtimes I have installed those as well.

ws won't work

I am on Windows 7 Home Premium Service Pack 1

I am using a Sony laptop with i5 processor.

I would be grateful if anybody could help

Thanks in anticipation of your help

John