I have just installed Apache 2.2.17, and I am using it first time.
Now when I try to start the server using the command service httpd start it gives me
If you are using windows there is something different sort of situation
First open c:/apache24/conf/httpd.conf.
The Apache folder is enough not specifically above path
After that you have to configure httpd.conf file.
Just after few lines there is pattern like:
#Listen _____________:80
Listen 80
Here You have to change for the localhost.
You have to enter ipv4 address for that you can open localhost.
Refer this video link and after that just bit more.
Change your environment variables:

In which you have to enter path:
c:apache24/bin
and
same in the SYSTEM variables
If any query feel free to ask.