To Setup IIS Application Pool on your server please follow the following steps:-
1) Click IIS Application Pool on your Home page.
2) Click Switch On.
3) To limit the amount of CPU resources that your application pool can use,
select the Switch on CPU monitoring check box and provide a number (in
percents) in the Maximum CPU use (%) field.
4) Click OK.
To disable IIS application pool
1) Click IIS Application Pool on your Home page.
2) Click Switch Off.
3) Click OK.