If you are facing W3SVC Error During Reporting Extension installation in axapta as following image.
To solve this error you can try following things.
Open IIS Manager and navigate to the Web server node in the tree.
In the Actions pane, click Start if you want to start the Web server or Stop if you want to stop the Web server.
Using a command line
Open an elevated command-line window.
At the command prompt, type net stop WAS and press ENTER; type Y and then press ENTER to also stop W3SVC.
To restart the Web server, type net start W3SVC and press ENTER to start both WAS and W3SVC.
To solve this error you can try following things.
Open IIS Manager and navigate to the Web server node in the tree.
In the Actions pane, click Start if you want to start the Web server or Stop if you want to stop the Web server.
Using a command line
Open an elevated command-line window.
At the command prompt, type net stop WAS and press ENTER; type Y and then press ENTER to also stop W3SVC.
To restart the Web server, type net start W3SVC and press ENTER to start both WAS and W3SVC.