In IIS7.5 I was trying to start my default Web Site and am getting the following Error Screen.
I realized that I want to see which process is using this portNo .
Lets take a look at the netstart and see what might be causing problem.
Open Command Prompt (Windows Key + R and Enter cmd) and enter Command.
Then I tried to which process is using this Process ID 4 accessing port No 80.
Using the tasklist command we can see the all processes running under Windows. You can Filter by enter the command /fi “PID eq 4”. Means we are Searching Process ID equals to 4.
The process with Process ID 4 is Skype. Then Closed the Skype and restart the IIS now it is working fine Now.